private void button2_Click(object sender, EventArgs e)
{
string exeDir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + Path.DirectorySeparatorChar;
string dataDir = new Uri(new Uri(exeDir), @"../../Data/").LocalPath;
Aspose.Pdf.Document pdfDocument = new Aspose.Pdf.Document(dataDir + "//InputFile.pdf");
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
using (FileStream imageStream = new FileStream("image" + pageCount + ".png", FileMode.Create))
{
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
imageStream.Close();
MessageBox.Show("png file created in \\bin\\Debug");
}
}
}
public static void Run()
{
// ExStart:ConvertAllPagesToPNG
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Images();
// Open document
Document pdfDocument = new Document(dataDir + "ConvertAllPagesToPNG.pdf");
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
using (FileStream imageStream = new FileStream(dataDir + "image" + pageCount + "_out" + ".png", FileMode.Create))
{
// Create PNG device with specified attributes
// Width, Height, Resolution, Quality
// Quality [0-100], 100 is Maximum
// Create Resolution object
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
// Convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
// Close stream
imageStream.Close();
}
}
// ExEnd:ConvertAllPagesToPNG
System.Console.WriteLine("PDF pages are converted to PNG successfully!");
}
public static void Run()
{
// ExStart:ConvertPageRegionToDOM
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Images();
// Open document
Document document = new Document( dataDir + "AddImage.pdf");
// Get rectangle of particular page region
Aspose.Pdf.Rectangle pageRect = new Aspose.Pdf.Rectangle(20, 671, 693, 1125);
// Set CropBox value as per rectangle of desired page region
document.Pages[1].CropBox = pageRect;
// Save cropped document into stream
MemoryStream ms = new MemoryStream();
document.Save(ms);
// Open cropped PDF document and convert to image
document = new Document(ms);
// Create Resolution object
Resolution resolution = new Resolution(300);
// Create PNG device with specified attributes
PngDevice pngDevice = new PngDevice(resolution);
dataDir = dataDir + "ConvertPageRegionToDOM_out.png";
// Convert a particular page and save the image to stream
pngDevice.Process(document.Pages[1], dataDir);
ms.Close();
// ExEnd:ConvertPageRegionToDOM
Console.WriteLine("\nPage region converted to DOM successfully.\nFile saved at " + dataDir);
}
public static void Run()
{
// ExStart:ConvertPageRegionToDOM
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Images();
// Open document
Document document = new Document(dataDir + "AddImage.pdf");
// Get rectangle of particular page region
Aspose.Pdf.Rectangle pageRect = new Aspose.Pdf.Rectangle(20, 671, 693, 1125);
// Set CropBox value as per rectangle of desired page region
document.Pages[1].CropBox = pageRect;
// Save cropped document into stream
MemoryStream ms = new MemoryStream();
document.Save(ms);
// Open cropped PDF document and convert to image
document = new Document(ms);
// Create Resolution object
Resolution resolution = new Resolution(300);
// Create PNG device with specified attributes
PngDevice pngDevice = new PngDevice(resolution);
dataDir = dataDir + "ConvertPageRegionToDOM_out_.png";
// Convert a particular page and save the image to stream
pngDevice.Process(document.Pages[1], dataDir);
ms.Close();
// ExEnd:ConvertPageRegionToDOM
Console.WriteLine("\nPage region converted to DOM successfully.\nFile saved at " + dataDir);
}
public static void Main(string[] args)
{
// The path to the documents directory.
string dataDir = Path.GetFullPath("../../../Data/");
//Open document
Document pdfDocument = new Document(dataDir + "input.pdf");
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
using (FileStream imageStream = new FileStream(dataDir + "image" + pageCount + ".png", FileMode.Create))
{
//create PNG device with specified attributes
//Width, Height, Resolution, Quality
//Quality [0-100], 100 is Maximum
//Create Resolution object
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
//Convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
}
}
}
public static void Run()
{
// ExStart:PageToPNG
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Images();
// Open document
Document pdfDocument = new Document(dataDir + "PageToPNG.pdf");
using (FileStream imageStream = new FileStream(dataDir + "aspose-logo.png", FileMode.Create))
{
// Create Resolution object
Resolution resolution = new Resolution(300);
// Create PNG device with specified attributes (Width, Height, Resolution)
PngDevice pngDevice = new PngDevice(resolution);
// Convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[1], imageStream);
// Close stream
imageStream.Close();
}
// ExEnd:PageToPNG
}
public static void Main(string[] args)
{
// The path to the documents directory.
string dataDir = Path.GetFullPath("../../../Data/");
//Open document
Document pdfDocument = new Document(dataDir+ "input.pdf");
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
using (FileStream imageStream = new FileStream(dataDir + "image" + pageCount + ".png", FileMode.Create))
{
//create PNG device with specified attributes
//Width, Height, Resolution, Quality
//Quality [0-100], 100 is Maximum
//Create Resolution object
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
//Convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
}
}
}
public static void Run()
{
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Images();
//open document
Document pdfDocument = new Document(dataDir + "PageToPNG.pdf");
using (FileStream imageStream = new FileStream(dataDir + "aspose-logo.png", FileMode.Create))
{
//create Resolution object
Resolution resolution = new Resolution(300);
//create PNG device with specified attributes (Width, Height, Resolution)
PngDevice pngDevice = new PngDevice(resolution);
//convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[1], imageStream);
//close stream
imageStream.Close();
}
}
public static void Run()
{
// ExStart:ConvertAllPagesToPNG
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_Images();
// Open document
Document pdfDocument = new Document(dataDir + "ConvertAllPagesToPNG.pdf");
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
using (FileStream imageStream = new FileStream(dataDir + "image" + pageCount + "_out" + ".png", FileMode.Create))
{
// Create PNG device with specified attributes
// Width, Height, Resolution, Quality
// Quality [0-100], 100 is Maximum
// Create Resolution object
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
// Convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
// Close stream
imageStream.Close();
}
}
// ExEnd:ConvertAllPagesToPNG
System.Console.WriteLine("PDF pages are converted to PNG successfully!");
}
private OutputDevice GetCorrectOutputDevice(Job job)
{
OutputDevice device;
switch (job.Profile.OutputFormat)
{
case OutputFormat.PdfA1B:
case OutputFormat.PdfA2B:
case OutputFormat.PdfA3B:
case OutputFormat.PdfX:
case OutputFormat.Pdf:
device = new PdfDevice(job);
break;
case OutputFormat.Png:
device = new PngDevice(job);
break;
case OutputFormat.Jpeg:
device = new JpegDevice(job);
break;
case OutputFormat.Tif:
device = new TiffDevice(job);
break;
case OutputFormat.Txt:
device = new TextDevice(job);
break;
default:
throw new Exception("Illegal OutputFormat specified");
}
return(device);
}
///<Summary>
/// ConvertPdfToPng method to convert PDF to PNG
///</Summary>
public Response ConvertPdfToPng(string fileName, string folderName)
{
return(ProcessTask(fileName, folderName, ".png", true, "", true, delegate(string inFilePath, string outPath, string zipOutFolder)
{
Aspose.Pdf.Document pdfDocument = new Aspose.Pdf.Document(inFilePath);
string outfileName = Path.GetFileNameWithoutExtension(fileName) + "_{0}";
int totalPages = pdfDocument.Pages.Count;
for (int pageCount = 1; pageCount <= totalPages; pageCount++)
{
if (totalPages > 1)
{
outPath = zipOutFolder + "/" + outfileName;
outPath = string.Format(outPath, pageCount);
}
else
{
outPath = zipOutFolder + "/" + Path.GetFileNameWithoutExtension(fileName);
}
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
pngDevice.Process(pdfDocument.Pages[pageCount], outPath + ".png");
}
}));
}
public void Init(string file, int clientWidth)
{
Logger.Info("**** Начинается обработка файла {0} ****", file);
string directory = Path.GetDirectoryName(file);
var newFile = Path.Combine(directory, string.Concat(Path.GetFileNameWithoutExtension(file), ".png"));
Logger.Info("Будет создан файл {0}", newFile);
try
{
//исходную пдфку перегоняем в картинку и потом уже картинку масштабируем
Document pdfDocument = new Document(file);
using (FileStream imageStream = new FileStream(newFile, FileMode.OpenOrCreate))
{
Resolution resolution = new Resolution(100);
PngDevice pngDevice = new PngDevice(resolution);
pngDevice.Process(pdfDocument.Pages[1], imageStream);
imageStream.Close();
}
_imageProcessor.Init(newFile, clientWidth);
}
catch (Exception e)
{
Logger.Error(e);
}
Logger.Info("**** Обработка файла {0} завершена****", file);
}
/// <summary>
/// Excel转为图片
/// </summary>
/// <param name="source">源文件路径</param>
/// <param name="target">图片保存的文件夹路径</param>
/// <param name="dpi">dpi</param>
/// <param name="format">图片格式</param>
public static bool ConverToImage(string source, string target, int resolution = 300, AsposeConvertDelegate d = null)
{
double percent = 0.0;
int page = 0;
int total = 0;
double second = 0;
string path = "";
string message = "";
DateTime startTime = DateTime.Now;
if (!FileUtil.CreateDirectory(target))
{
throw new DirectoryNotFoundException();
}
if (!File.Exists(source))
{
throw new FileNotFoundException();
}
if (d != null)
{
second = (DateTime.Now - startTime).TotalSeconds;
percent = 0.1;
message = "正在解析文件！";
d.Invoke(percent, page, total, second, path, message);
}
Document document = new Document(source);
total = document.Pages.Count;
if (d != null)
{
second = (DateTime.Now - startTime).TotalSeconds;
percent = 0.2;
message = "开始转换文件，共" + total + "页！";
d.Invoke(percent, page, total, second, path, message);
}
logger.Info("ConverToImage - source=" + source + ", target=" + target + ", resolution=" + resolution + ", pageCount=" + total);
for (page = 0; page < total; page++)
{
path = target + "\\" + (page + 1) + ".png";
using (FileStream imageStream = new FileStream(path, FileMode.Create))
{
PngDevice pngDevice = new PngDevice(new Resolution(resolution));
pngDevice.Process(document.Pages[page + 1], imageStream);
imageStream.Close();
}
if (d != null)
{
second = (DateTime.Now - startTime).TotalSeconds;
percent = 0.2 + (page + 1) * 0.8 / total;
message = "正在转换第" + (page + 1) + "/" + total + "页！";
d.Invoke(percent, (page + 1), total, second, path, message);
}
}
return(true);
}
private void InitDevice()
{
//Width, Height, Resolution, Quality
//Quality [0-100], 100 is Maximum
//create Resolution object
Resolution resolution = new Resolution(170);
//JpegDevice jpegDevice = new JpegDevice(500, 700, resolution,100);
_device = new PngDevice(resolution);
}
public static string AppendConverter(string appPages, string appRatios, string appHeights)
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
int totalCount = doc.Pages.Count;
//open second document
Document pdfDocument2 = new Document(HttpContext.Current.Server.MapPath("Convert/append.pdf"));
//add pages of second document to the first
doc.Pages.Add(pdfDocument2.Pages);
//save concatenated output file
doc.Save(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
string Aratio = "";
string pages = "";
string height = "";
string Allheights = "";
for (int pageCount = 1; pageCount <= doc.Pages.Count; pageCount++)
{
if (pageCount > totalCount)
{
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"), FileMode.Create))
{
//Create Resolution object
//Resolution resolution = new Resolution(300);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"));
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath("Input/image" + pageCount + ".png"), out height, out Aratio);
image.Dispose();
appPages = appPages + "," + "image" + pageCount + ".png";
appRatios = appRatios + "," + Aratio;
appHeights = appHeights + "," + height;
}
}
}
return(appPages + "%#" + appRatios + "%#" + appHeights);
}
public void ToJpeg(string absoluteFilePath, string outputPath)
{
using (var pdfDocument = new Document(absoluteFilePath))
{
for (var i = 1; i < pdfDocument.Pages.Count + 1; i++)
{
//convert a particular page and save the image to stream
var page = pdfDocument.Pages[i];
var ph = page.PageInfo.Height - page.Rect.Height;
var pw = page.PageInfo.Width - page.Rect.Width;
var pngDevice = new PngDevice((int)page.Rect.Width, (int)page.Rect.Height);
pngDevice.Process(page, Path.Combine(outputPath, i.ToString() + ".PNG"));
lblInfo.Content = $"{i}/{pdfDocument.Pages.Count}";
}
}
}
public override async Task GeneratePreviewAsync(Stream docStream, IPreviewGenerationContext context,
CancellationToken cancellationToken)
{
var document = new Document(docStream);
if (context.StartIndex == 0)
{
await context.SetPageCountAsync(document.Pages.Count, cancellationToken).ConfigureAwait(false);
}
var loggedPageError = false;
context.SetIndexes(document.Pages.Count, out var firstIndex, out var lastIndex);
for (var i = firstIndex; i <= lastIndex; i++)
{
cancellationToken.ThrowIfCancellationRequested();
using (var imgStream = new MemoryStream())
{
try
{
var pngDevice = new PngDevice(new Resolution(context.PreviewResolution, context.PreviewResolution));
pngDevice.Process(document.Pages[i + 1], imgStream);
if (imgStream.Length == 0)
{
continue;
}
await context.SavePreviewAndThumbnailAsync(imgStream, i + 1, cancellationToken)
.ConfigureAwait(false);
}
catch (Exception ex)
{
if (await Tools.HandlePageErrorAsync(ex, i + 1, context, !loggedPageError,
cancellationToken).ConfigureAwait(false))
{
return;
}
loggedPageError = true;
}
}
}
}
private static string ImageConverter(string fullName)
{
Document doc = new Document(fullName);
string Aratio = "";
string pages = "";
string Ratios = "";
string height = "";
string Allheights = "";
string fields = "";
int TotalPages = doc.Pages.Count;
var fullPath = System.IO.Path.GetDirectoryName(fullName);
for (int pageCount = 1; pageCount <= TotalPages; pageCount++)
{
using (FileStream imageStream = new FileStream(fullPath + "\\image" + pageCount + ".png", FileMode.Create))
{
PngDevice pngDevice = new PngDevice(new Resolution(150));
pngDevice.Process(doc.Pages[pageCount], imageStream);
imageStream.Close();
//System.Drawing.Image image = System.Drawing.Image.FromFile(fullPath + "\\image" + pageCount + ".png");
ScaleImage(fullPath + "\\image" + pageCount + ".png", 1138, 760, out height, out Aratio);
//image.Dispose();
if (pageCount == 1)
{
fields = CheckFields(doc, pageCount, "image" + pageCount + ".png", fields, Convert.ToDouble(Aratio));
}
pages = pages + "," + "image" + pageCount + ".png";
Ratios = Ratios + "," + Aratio;
Allheights = Allheights + "," + height;
}
}
Ratios = Ratios.Substring(1, Ratios.Length - 1);
pages = pages.Substring(1, pages.Length - 1);
Allheights = Allheights.Substring(1, Allheights.Length - 1);
if (fields != "")
{
fields = fields.Substring(3, fields.Length - 3);
}
return(pages + "%#" + Ratios + "%#" + Allheights + "%#" + fields);
}
public IHttpActionResult AddPage(string folder)
{
var fullPath = string.Format("{0}Editor\\{1}", Config.Configuration.WorkingDirectory.Replace("/", "\\"), folder);
var pdfDocumentPath = string.Format("{0}\\document.pdf", fullPath);
try
{
Document doc = new Document(pdfDocumentPath);
doc.Pages.Add();
doc.Save(pdfDocumentPath);
string height = "";
string Aratio = "";
//int counter = GetHighestPage();
using (FileStream imageStream = new FileStream(fullPath + "\\image" + doc.Pages.Count + ".png", FileMode.Create))
{
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice(new Resolution(150));
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[doc.Pages.Count], imageStream);
//Close stream
imageStream.Close();
//System.Drawing.Image image = System.Drawing.Image.FromFile(fullPath + "\\image" + doc.Pages.Count + ".png");
ScaleImage(fullPath + "\\image" + doc.Pages.Count + ".png", 1138, 760, out height, out Aratio);
//image.Dispose();
}
return(Ok(new DocStatusModel
{
d = "image" + doc.Pages.Count + ".png#" + height,
Path = folder
}));
}
catch (Exception ex)
{
return(InternalServerError(ex));
}
}
public override void GeneratePreview(Stream docStream, IPreviewGenerationContext context)
{
var document = new Document(docStream);
if (context.StartIndex == 0)
{
context.SetPageCount(document.Pages.Count);
}
int firstIndex;
int lastIndex;
var loggedPageError = false;
context.SetIndexes(document.Pages.Count, out firstIndex, out lastIndex);
for (var i = firstIndex; i <= lastIndex; i++)
{
using (var imgStream = new MemoryStream())
{
try
{
var pngDevice = new PngDevice(new Resolution(context.PreviewResolution, context.PreviewResolution));
pngDevice.Process(document.Pages[i + 1], imgStream);
if (imgStream.Length == 0)
{
continue;
}
context.SavePreviewAndThumbnail(imgStream, i + 1);
}
catch (Exception ex)
{
if (Tools.HandlePageError(ex, i + 1, context, !loggedPageError))
{
return;
}
loggedPageError = true;
}
}
}
}
public static OutputDevice GenerateDevice(OutputFormat outputFormat, IFile fileWrap = null)
{
var jobStub = GenerateJobStub(outputFormat);
var fileStub = fileWrap ?? Substitute.For <IFile>();
var osHelperStub = Substitute.For <IOsHelper>();
osHelperStub.WindowsFontsFolder.Returns(WindowsFontsFolderDummie);
var commandLineUtilStub = Substitute.For <ICommandLineUtil>();
OutputDevice device = null;
switch (outputFormat)
{
case OutputFormat.Jpeg:
device = new JpegDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Pdf:
case OutputFormat.PdfA1B:
case OutputFormat.PdfA2B:
case OutputFormat.PdfX:
device = new PdfDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Png:
device = new PngDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Tif:
device = new TiffDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Txt:
device = new TextDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
}
return(device);
}
public static OutputDevice GenerateDevice(OutputFormat outputFormat)
{
var jobStub = GenerateJobStub(outputFormat);
var fileStub = MockRepository.GenerateStub <IFile>();
var osHelperStub = MockRepository.GenerateStub <IOsHelper>();
osHelperStub.Stub(x => x.WindowsFontsFolder).Return(WindowsFontsFolderDummie);
var commandLineUtilStub = MockRepository.GenerateStub <ICommandLineUtil>();
OutputDevice device = null;
switch (outputFormat)
{
case OutputFormat.Jpeg:
device = new JpegDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Pdf:
case OutputFormat.PdfA1B:
case OutputFormat.PdfA2B:
case OutputFormat.PdfX:
device = new PdfDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Png:
device = new PngDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Tif:
device = new TiffDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
case OutputFormat.Txt:
device = new TextDevice(jobStub, fileStub, osHelperStub, commandLineUtilStub);
break;
}
return(device);
}
/// <summary>
/// This feature is supported by version 19.6 or greater
/// </summary>
public static void Run()
{
// ExStart:1
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_DocumentConversion();
using (Document pdfDocument = new Document(dataDir + "input.pdf"))
{
using (FileStream imageStream = new FileStream(dataDir + "SetDefaultFontName.png", FileMode.Create))
{
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
RenderingOptions ro = new RenderingOptions();
ro.DefaultFontName = "Arial";
pngDevice.RenderingOptions = ro;
pngDevice.Process(pdfDocument.Pages[1], imageStream);
}
}
// ExEnd:1
}
private OutputDevice GetOutputDevice(Job job, ConversionMode conversionMode)
{
OutputDevice device;
if (conversionMode == ConversionMode.IntermediateConversion)
{
return(new PdfIntermediateDevice(job));
}
switch (job.Profile.OutputFormat)
{
case OutputFormat.PdfA1B:
case OutputFormat.PdfA2B:
case OutputFormat.PdfA3B:
case OutputFormat.PdfX:
case OutputFormat.Pdf:
device = new PdfDevice(job, conversionMode);
break;
case OutputFormat.Png:
device = new PngDevice(job, conversionMode);
break;
case OutputFormat.Jpeg:
device = new JpegDevice(job, conversionMode);
break;
case OutputFormat.Tif:
device = new TiffDevice(job, conversionMode);
break;
case OutputFormat.Txt:
device = new TextDevice(job, conversionMode);
break;
default:
throw new Exception("Illegal OutputFormat specified");
}
return(device);
}
public static void Run()
{
try
{
// ExStart:1
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_DocumentConversion();
// Open document
Document pdfDocument = new Document(dataDir + "input.pdf");
// Create Aspose.Pdf.RenderingOptions to enable font hinting
RenderingOptions opts = new RenderingOptions();
opts.UseFontHinting = true;
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
using (FileStream imageStream = new FileStream(dataDir + "image" + pageCount + "_out" + ".png", FileMode.Create))
{
// Create PNG device with specified attributes
// Width, Height, Resolution, Quality
// Quality [0-100], 100 is Maximum
// Create Resolution object
Resolution resolution = new Resolution(300);
PngDevice pngDevice = new PngDevice(resolution);
// Set predefined rendering options
pngDevice.RenderingOptions = opts;
// Convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
// Close stream
imageStream.Close();
}
}
// ExEnd:1
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
private static void GeneratePdfPreview(int previewsFolderId, Stream docStream)
{
var document = new Aspose.Pdf.Document(docStream);
if (StartIndex == 0)
{
SetPageCount(document.Pages.Count);
}
var firstIndex = 0;
var lastIndex = 0;
SetIndexes(StartIndex, document.Pages.Count, out firstIndex, out lastIndex, MaxPreviewCount);
for (var i = firstIndex; i <= lastIndex; i++)
{
//if (!CheckActuality(file))
// break;
using (var imgStream = new MemoryStream())
{
try
{
var pngDevice = new PngDevice();
pngDevice.Process(document.Pages[i + 1], imgStream);
if (imgStream.Length == 0)
{
continue;
}
SavePreviewAndThumbnail(imgStream, i + 1, previewsFolderId);
}
catch (Exception ex)
{
Logger.WriteError(ContentId, i + 1, ex: ex, startIndex: StartIndex, version: Version);
SaveEmptyPreview(i + 1, previewsFolderId);
}
}
}
}
private static string AppendConverter(string fullPath, string appPages, string appRatios, string appHeights)
{
var originalDocumentFileName = Path.Combine(fullPath, "document.pdf");
var appendedDocumentFileName = Path.Combine(fullPath, "append.pdf");
Document doc = new Document(originalDocumentFileName);
int initialPageCount = doc.Pages.Count;
//open second document
Document pdfDocument2 = new Document(appendedDocumentFileName);
//add pages of second document to the first
doc.Pages.Add(pdfDocument2.Pages);
//save concatenated output file
doc.Save(originalDocumentFileName);
string Aratio = "";
//string pages = "";
string height = "";
//string Allheights = "";
for (int pageIndex = initialPageCount + 1; pageIndex <= doc.Pages.Count; pageIndex++)
{
var imageFileName = Path.Combine(fullPath, "image" + pageIndex + ".png");
using (FileStream imageStream = new FileStream(imageFileName, FileMode.Create))
{
PngDevice pngDevice = new PngDevice(new Resolution(150));
pngDevice.Process(doc.Pages[pageIndex], imageStream);
imageStream.Close();
ScaleImage(imageFileName, 1138, 760, out height, out Aratio);
appPages = appPages + "," + "image" + pageIndex + ".png";
appRatios = appRatios + "," + Aratio;
appHeights = appHeights + "," + height;
}
}
return(appPages + "%#" + appRatios + "%#" + appHeights);
}
public void ConvertToImage(string filepath, string imageFolderName, string imageFolderRootPath)
{
if (!Directory.Exists(imageFolderRootPath))
{
///若路径不存在,创建路径
Directory.CreateDirectory(imageFolderRootPath);
}
if (!Directory.Exists(imageFolderRootPath + "\\" + imageFolderName))
{
///若路径不存在,创建路径
Directory.CreateDirectory(imageFolderRootPath + "\\" + imageFolderName);
}
Document pdfDocument = new Document(filepath);
for (int pageCount = 1; pageCount <= pdfDocument.Pages.Count; pageCount++)
{
string imageFilePath = string.Format(@"{0}\{1}\{2}.png", imageFolderRootPath, imageFolderName, pageCount);
using (FileStream imageStream = new FileStream(imageFilePath, FileMode.Create))
{
// Create Resolution object
Resolution resolution = new Resolution(300);
// Create PNG device with specified attributes
PngDevice pngDevice = new PngDevice(resolution);
// Convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[pageCount], imageStream);
// Close stream
imageStream.Close();
}
}
string jsFileName = string.Format(@"{0}\{1}\{2}.js", imageFolderRootPath, imageFolderName, "info");
var fileType = (filepath.EndsWith(".docx")) ? "docx" : "doc";
File.WriteAllText(jsFileName, "var imageInfo={PageCount:" + pdfDocument.Pages.Count + ",FileType:'" + fileType + "'}");
}
public static string AddPage_Click(string lastpage)
{
try
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
//insert an empty page at the end of a PDF file
doc.Pages.Add();
doc.Save(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
string height = "";
int counter = GetHighestPage();
counter = counter + 1;
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath("Input/image-1" + counter + ".png"), FileMode.Create))
{
//Create Resolution object
Resolution resolution = new Resolution(300);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[doc.Pages.Count], imageStream);
//Close stream
imageStream.Close();
}
string Aratio = "";
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("Input/image-1" + counter + ".png"));
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath("Input/image" + counter + ".png"), out height, out Aratio);
image.Dispose();
return("image" + counter + ".png");
}
catch (Exception Exp)
{
return(Exp.Message);
}
}
public static void Main(string[] args)
{
// The path to the documents directory.
string dataDir = Path.GetFullPath("../../../Data/");
//open document
Document pdfDocument = new Document(dataDir + "input.pdf");
using (FileStream imageStream = new FileStream(dataDir + "aspose-logo.png", FileMode.Create))
{
//create Resolution object
Resolution resolution = new Resolution(300);
//create PNG device with specified attributes (Width, Height, Resolution)
PngDevice pngDevice = new PngDevice(resolution);
//convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[1], imageStream);
//close stream
imageStream.Close();
}
}
public static void Main(string[] args)
{
// The path to the documents directory.
string dataDir = Path.GetFullPath("../../../Data/");
//open document
Document pdfDocument = new Document(dataDir + "input.pdf");
using (FileStream imageStream = new FileStream(dataDir + "aspose-logo.png", FileMode.Create))
{
//create Resolution object
Resolution resolution = new Resolution(300);
//create PNG device with specified attributes (Width, Height, Resolution)
PngDevice pngDevice = new PngDevice(resolution);
//convert a particular page and save the image to stream
pngDevice.Process(pdfDocument.Pages[1], imageStream);
//close stream
imageStream.Close();
}
}
public static string AddPage_Click(string lastpage)
{
try
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
//insert an empty page at the end of a PDF file
doc.Pages.Add();
doc.Save(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
string height = "";
int counter = GetHighestPage();
counter = counter + 1;
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath("Input/image-1" + counter + ".png"), FileMode.Create))
{
//Create Resolution object
Resolution resolution = new Resolution(300);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[doc.Pages.Count], imageStream);
//Close stream
imageStream.Close();
}
string Aratio = "";
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("Input/image-1" + counter + ".png"));
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath("Input/image" + counter + ".png"), out height, out Aratio);
image.Dispose();
return "image" + counter + ".png";
}
catch (Exception Exp)
{
return Exp.Message;
}
}
public static void Run()
{
// ExStart:TrimWhiteSpace
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();
// Load an existing PDF files
Document doc = new Document(dataDir + "input.pdf");
// Render the page to image with 72 DPI
PngDevice device = new PngDevice(new Resolution(72));
using (MemoryStream imageStr = new MemoryStream())
{
device.Process(doc.Pages[1], imageStr);
Bitmap bmp = (Bitmap)Bitmap.FromStream(imageStr);
System.Drawing.Imaging.BitmapData imageBitmapData = null;
// Determine white areas
try
{
imageBitmapData = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height),
System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
Aspose.Pdf.Rectangle prevCropBox = doc.Pages[1].CropBox;
int toHeight = bmp.Height;
int toWidth = bmp.Width;
int?leftNonWhite = null;
int?rightNonWhite = null;
int?topNonWhite = null;
int?bottomNonWhite = null;
for (int y = 0; y < toHeight; y++)
{
byte[] imageRowBytes = new byte[imageBitmapData.Stride];
// Copy the row data to byte array
if (IntPtr.Size == 4)
{
System.Runtime.InteropServices.Marshal.Copy(new IntPtr(imageBitmapData.Scan0.ToInt32() + y * imageBitmapData.Stride), imageRowBytes, 0, imageBitmapData.Stride);
}
else
{
System.Runtime.InteropServices.Marshal.Copy(new IntPtr(imageBitmapData.Scan0.ToInt64() + y * imageBitmapData.Stride), imageRowBytes, 0, imageBitmapData.Stride);
}
int?leftNonWhite_row = null;
int?rightNonWhite_row = null;
for (int x = 0; x < toWidth; x++)
{
if (imageRowBytes[x * 4] != 255 ||
imageRowBytes[x * 4 + 1] != 255 ||
imageRowBytes[x * 4 + 2] != 255)
{
if (leftNonWhite_row == null)
{
leftNonWhite_row = x;
}
rightNonWhite_row = x;
}
}
if (leftNonWhite_row != null || rightNonWhite_row != null)
{
if (topNonWhite == null)
{
topNonWhite = y;
}
bottomNonWhite = y;
}
if (leftNonWhite_row != null &&
(leftNonWhite == null || leftNonWhite > leftNonWhite_row))
{
leftNonWhite = leftNonWhite_row;
}
if (rightNonWhite_row != null &&
(rightNonWhite == null || rightNonWhite < rightNonWhite_row))
{
rightNonWhite = rightNonWhite_row;
}
}
leftNonWhite = leftNonWhite ?? 0;
rightNonWhite = rightNonWhite ?? toWidth;
topNonWhite = topNonWhite ?? 0;
bottomNonWhite = bottomNonWhite ?? toHeight;
// Set crop box with correction to previous crop box
doc.Pages[1].CropBox =
new Aspose.Pdf.Rectangle(
leftNonWhite.Value + prevCropBox.LLX,
(toHeight + prevCropBox.LLY) - bottomNonWhite.Value,
rightNonWhite.Value + doc.Pages[1].CropBox.LLX,
(toHeight + prevCropBox.LLY) - topNonWhite.Value
);
}
finally
{
if (imageBitmapData != null)
{
bmp.UnlockBits(imageBitmapData);
}
}
}
dataDir = dataDir + "TrimWhiteSpace_out_.pdf";
// Save the updated document
doc.Save(dataDir);
// ExEnd:TrimWhiteSpace
Console.WriteLine("\nWhite-space trimmed successfully around a page.\nFile saved at " + dataDir);
}
public static string AppendConverter(string appPages, string appRatios, string appHeights)
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
int totalCount = doc.Pages.Count;
//open second document
Document pdfDocument2 = new Document(HttpContext.Current.Server.MapPath("Convert/append.pdf"));
//add pages of second document to the first
doc.Pages.Add(pdfDocument2.Pages);
//save concatenated output file
doc.Save(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
string Aratio = "";
string pages = "";
string height = "";
string Allheights = "";
for (int pageCount = 1; pageCount <= doc.Pages.Count; pageCount++)
{
if (pageCount > totalCount)
{
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"), FileMode.Create))
{
//Create Resolution object
//Resolution resolution = new Resolution(300);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"));
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath("Input/image" + pageCount + ".png"), out height, out Aratio);
image.Dispose();
appPages = appPages + "," + "image" + pageCount + ".png";
appRatios = appRatios + "," + Aratio;
appHeights = appHeights + "," + height;
}
}
}
return appPages + "%#" + appRatios + "%#" + appHeights;
}
public static string ReplaceText(string txtFind, string txtReplace, string[] pageList)
{
try
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
//create TextAbsorber object to find all instances of the input search phrase
TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber("(?i)" + txtFind, new Aspose.Pdf.Text.TextOptions.TextSearchOptions(true));
textFragmentAbsorber.TextReplaceOptions.ReplaceAdjustmentAction = TextReplaceOptions.ReplaceAdjustment.WholeWordsHyphenation;
//accept the absorber for all the pages
doc.Pages.Accept(textFragmentAbsorber);
//get the extracted text fragments
TextFragmentCollection textFragmentCollection = textFragmentAbsorber.TextFragments;
//loop through the fragments
foreach (TextFragment textFragment in textFragmentCollection)
{
//update text and other properties
textFragment.Text = txtReplace;
}
doc.Save(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
System.IO.DirectoryInfo downloadedMessageInfo = new DirectoryInfo(HttpContext.Current.Server.MapPath("Input/"));
foreach (FileInfo file in downloadedMessageInfo.GetFiles())
{
file.Delete();
}
for (int pageCount = 1; pageCount <= doc.Pages.Count; pageCount++)
{
string filename = "Input/" + pageList[pageCount - 1];
filename = filename.Replace("image", "image-1");
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath(filename), FileMode.Create))
{
//Create Resolution object
Resolution resolution = new Resolution(300);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath(filename));
string height = "";
string Aratio = "";
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath(filename.Replace("image-1", "image")), out height, out Aratio);
image.Dispose();
}
}
}
catch (Exception exp)
{
}
return "success";
}
public static string ReplaceText(string txtFind, string txtReplace, string[] pageList)
{
try
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
//create TextAbsorber object to find all instances of the input search phrase
TextFragmentAbsorber textFragmentAbsorber = new TextFragmentAbsorber("(?i)" + txtFind, new Aspose.Pdf.Text.TextOptions.TextSearchOptions(true));
textFragmentAbsorber.TextReplaceOptions.ReplaceAdjustmentAction = TextReplaceOptions.ReplaceAdjustment.WholeWordsHyphenation;
//accept the absorber for all the pages
doc.Pages.Accept(textFragmentAbsorber);
//get the extracted text fragments
TextFragmentCollection textFragmentCollection = textFragmentAbsorber.TextFragments;
//loop through the fragments
foreach (TextFragment textFragment in textFragmentCollection)
{
//update text and other properties
textFragment.Text = txtReplace;
}
doc.Save(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
System.IO.DirectoryInfo downloadedMessageInfo = new DirectoryInfo(HttpContext.Current.Server.MapPath("Input/"));
foreach (FileInfo file in downloadedMessageInfo.GetFiles())
{
file.Delete();
}
for (int pageCount = 1; pageCount <= doc.Pages.Count; pageCount++)
{
string filename = "Input/" + pageList[pageCount - 1];
filename = filename.Replace("image", "image-1");
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath(filename), FileMode.Create))
{
//Create Resolution object
Resolution resolution = new Resolution(300);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath(filename));
string height = "";
string Aratio = "";
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath(filename.Replace("image-1", "image")), out height, out Aratio);
image.Dispose();
}
}
}
catch (Exception exp)
{
}
return("success");
}
/// <summary>
/// Run the Job
/// </summary>
protected override JobState RunJobWork()
{
try
{
if (string.IsNullOrEmpty(Thread.CurrentThread.Name))
{
Thread.CurrentThread.Name = "JobWorker";
}
}
catch (InvalidOperationException)
{
}
try
{
_ghostScript.Output += Ghostscript_Output;
OnJobCompleted += (sender, args) => _ghostScript.Output -= Ghostscript_Output;
OutputFiles.Clear();
Logger.Trace("Setting up actions");
SetUpActions();
Logger.Debug("Starting Ghostscript Job");
OutputDevice device;
switch (Profile.OutputFormat)
{
case OutputFormat.PdfA1B:
case OutputFormat.PdfA2B:
case OutputFormat.PdfX:
case OutputFormat.Pdf:
device = new PdfDevice(this);
break;
case OutputFormat.Png:
device = new PngDevice(this);
break;
case OutputFormat.Jpeg:
device = new JpegDevice(this);
break;
case OutputFormat.Tif:
device = new TiffDevice(this);
break;
case OutputFormat.Txt:
device = new TextDevice(this);
break;
default:
throw new Exception("Illegal OutputFormat specified");
}
Logger.Trace("Output format is: {0}", Profile.OutputFormat.ToString());
_ghostScript.Output += Ghostscript_Logging;
var success = _ghostScript.Run(device, JobTempFolder);
_ghostScript.Output -= Ghostscript_Logging;
Logger.Trace("Finished Ghostscript execution");
if (!success)
{
var errorMessage = ExtractGhostscriptErrors(GhostscriptOutput);
Logger.Error("Ghostscript execution failed: " + errorMessage);
ErrorMessage = errorMessage;
JobState = JobState.Failed;
return(JobState);
}
ProcessOutput();
Logger.Trace("Moving output files to final location");
MoveOutputFiles();
Logger.Trace("Finished Ghostscript Job");
JobState = JobState.Succeeded;
return(JobState);
}
catch (ProcessingException)
{
JobState = JobState.Failed;
throw;
}
catch (DeviceException)
{
JobState = JobState.Failed;
throw;
}
catch (Exception ex)
{
JobState = JobState.Failed;
Logger.Error("There was an error while converting the Job {0}: {1}", JobInfo.InfFile, ex);
throw;
}
}
public static string ImageConverter()
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
string Aratio = "";
string pages = "";
string Ratios = "";
string height = "";
string Allheights = "";
string fields = "";
int TotalPages = 0;
bool licensed = CheckLicense();
if (licensed || (!licensed && doc.Pages.Count <= 4))
{
TotalPages = doc.Pages.Count;
}
else
{
TotalPages = 4;
}
for (int pageCount = 1; pageCount <= TotalPages; pageCount++)
{
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"), FileMode.Create))
{
//Create Resolution object
// Resolution resolution = new Resolution(150);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"));
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath("Input/image" + pageCount + ".png"), out height, out Aratio);
image.Dispose();
if (pageCount == 1)
{
fields = CheckFields(doc, pageCount, "image" + pageCount + ".png", fields, Convert.ToDouble(Aratio), licensed);
}
pages = pages + "," + "image" + pageCount + ".png";
Ratios = Ratios + "," + Aratio;
Allheights = Allheights + "," + height;
}
}
Ratios = Ratios.Substring(1, Ratios.Length - 1);
pages = pages.Substring(1, pages.Length - 1);
Allheights = Allheights.Substring(1, Allheights.Length - 1);
if (fields != "")
{
fields = fields.Substring(3, fields.Length - 3);
}
return(pages + "%#" + Ratios + "%#" + Allheights + "%#" + fields);
}
public static void Run()
{
// ExStart:TrimWhiteSpace
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();
// Load an existing PDF files
Document doc = new Document(dataDir + "input.pdf");
// Render the page to image with 72 DPI
PngDevice device = new PngDevice(new Resolution(72));
using (MemoryStream imageStr = new MemoryStream())
{
device.Process(doc.Pages[1], imageStr);
Bitmap bmp = (Bitmap)Bitmap.FromStream(imageStr);
System.Drawing.Imaging.BitmapData imageBitmapData = null;
// Determine white areas
try
{
imageBitmapData = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height),
System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
Aspose.Pdf.Rectangle prevCropBox = doc.Pages[1].CropBox;
int toHeight = bmp.Height;
int toWidth = bmp.Width;
int? leftNonWhite = null;
int? rightNonWhite = null;
int? topNonWhite = null;
int? bottomNonWhite = null;
for (int y = 0; y < toHeight; y++)
{
byte[] imageRowBytes = new byte[imageBitmapData.Stride];
// Copy the row data to byte array
if (IntPtr.Size == 4)
System.Runtime.InteropServices.Marshal.Copy(new IntPtr(imageBitmapData.Scan0.ToInt32() + y * imageBitmapData.Stride), imageRowBytes, 0, imageBitmapData.Stride);
else
System.Runtime.InteropServices.Marshal.Copy(new IntPtr(imageBitmapData.Scan0.ToInt64() + y * imageBitmapData.Stride), imageRowBytes, 0, imageBitmapData.Stride);
int? leftNonWhite_row = null;
int? rightNonWhite_row = null;
for (int x = 0; x < toWidth; x++)
{
if (imageRowBytes[x * 4] != 255
|| imageRowBytes[x * 4 + 1] != 255
|| imageRowBytes[x * 4 + 2] != 255)
{
if (leftNonWhite_row == null)
leftNonWhite_row = x;
rightNonWhite_row = x;
}
}
if (leftNonWhite_row != null || rightNonWhite_row != null)
{
if (topNonWhite == null)
topNonWhite = y;
bottomNonWhite = y;
}
if (leftNonWhite_row != null
&& (leftNonWhite == null || leftNonWhite > leftNonWhite_row))
{
leftNonWhite = leftNonWhite_row;
}
if (rightNonWhite_row != null
&& (rightNonWhite == null || rightNonWhite < rightNonWhite_row))
{
rightNonWhite = rightNonWhite_row;
}
}
leftNonWhite = leftNonWhite ?? 0;
rightNonWhite = rightNonWhite ?? toWidth;
topNonWhite = topNonWhite ?? 0;
bottomNonWhite = bottomNonWhite ?? toHeight;
// Set crop box with correction to previous crop box
doc.Pages[1].CropBox =
new Aspose.Pdf.Rectangle(
leftNonWhite.Value + prevCropBox.LLX,
(toHeight + prevCropBox.LLY) - bottomNonWhite.Value,
rightNonWhite.Value + doc.Pages[1].CropBox.LLX,
(toHeight + prevCropBox.LLY) - topNonWhite.Value
);
}
finally
{
if (imageBitmapData != null)
bmp.UnlockBits(imageBitmapData);
}
}
dataDir = dataDir + "TrimWhiteSpace_out.pdf";
// Save the updated document
doc.Save(dataDir);
// ExEnd:TrimWhiteSpace
Console.WriteLine("\nWhite-space trimmed successfully around a page.\nFile saved at " + dataDir);
}
public static string ImageConverter()
{
Document doc = new Document(HttpContext.Current.Server.MapPath("Convert/output.pdf"));
string Aratio = "";
string pages = "";
string Ratios = "";
string height = "";
string Allheights = "";
string fields = "";
int TotalPages = 0;
bool licensed = CheckLicense();
if (licensed || (!licensed && doc.Pages.Count <= 4))
TotalPages = doc.Pages.Count;
else
TotalPages = 4;
for (int pageCount = 1; pageCount <= TotalPages; pageCount++)
{
using (FileStream imageStream = new FileStream(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"), FileMode.Create))
{
//Create Resolution object
// Resolution resolution = new Resolution(150);
//create PNG device with specified attributes
PngDevice pngDevice = new PngDevice();
//Convert a particular page and save the image to stream
pngDevice.Process(doc.Pages[pageCount], imageStream);
//Close stream
imageStream.Close();
System.Drawing.Image image = System.Drawing.Image.FromFile(HttpContext.Current.Server.MapPath("Input/image-1" + pageCount + ".png"));
ScaleImage(image, 1138, 760, HttpContext.Current.Server.MapPath("Input/image" + pageCount + ".png"), out height, out Aratio);
image.Dispose();
if(pageCount == 1)
fields = CheckFields(doc, pageCount, "image" + pageCount + ".png", fields, Convert.ToDouble(Aratio), licensed);
pages = pages + "," + "image" + pageCount + ".png";
Ratios = Ratios + "," + Aratio;
Allheights = Allheights + "," + height;
}
}
Ratios = Ratios.Substring(1, Ratios.Length - 1);
pages = pages.Substring(1, pages.Length -1);
Allheights = Allheights.Substring(1, Allheights.Length -1);
if (fields != "")
{
fields = fields.Substring(3, fields.Length - 3);
}
return pages + "%#" + Ratios + "%#" + Allheights + "%#" + fields;
}
public void TrimSpace(Document doc, int i)
{
// Render the page to image with 72 DPI
PngDevice device = new PngDevice(new Resolution(72));
using (MemoryStream imageStr = new MemoryStream())
{
device.Process(doc.Pages[i], imageStr);
Bitmap bmp = (Bitmap)Bitmap.FromStream(imageStr);
System.Drawing.Imaging.BitmapData imageBitmapData = null;
// Determine white areas
try
{
imageBitmapData = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height),
System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
Aspose.Pdf.Rectangle prevCropBox = doc.Pages[i].CropBox;
int toHeight = bmp.Height;
int toWidth = bmp.Width;
int?leftNonWhite = null;
int?rightNonWhite = null;
int?topNonWhite = null;
int?bottomNonWhite = null;
for (int y = 0; y < toHeight; y++)
{
byte[] imageRowBytes = new byte[imageBitmapData.Stride];
// Copy the row data to byte array
if (IntPtr.Size == 4)
{
System.Runtime.InteropServices.Marshal.Copy(new IntPtr(imageBitmapData.Scan0.ToInt32() + y * imageBitmapData.Stride), imageRowBytes, 0, imageBitmapData.Stride);
}
else
{
System.Runtime.InteropServices.Marshal.Copy(new IntPtr(imageBitmapData.Scan0.ToInt64() + y * imageBitmapData.Stride), imageRowBytes, 0, imageBitmapData.Stride);
}
int?leftNonWhite_row = null;
int?rightNonWhite_row = null;
for (int x = 0; x < toWidth; x++)
{
if (imageRowBytes[x * 4] != 255 ||
imageRowBytes[x * 4 + 1] != 255 ||
imageRowBytes[x * 4 + 2] != 255)
{
if (leftNonWhite_row == null)
{
leftNonWhite_row = x;
}
rightNonWhite_row = x;
}
}
if (leftNonWhite_row != null || rightNonWhite_row != null)
{
if (topNonWhite == null)
{
topNonWhite = y;
}
bottomNonWhite = y;
}
if (leftNonWhite_row != null &&
(leftNonWhite == null || leftNonWhite > leftNonWhite_row))
{
leftNonWhite = leftNonWhite_row;
}
if (rightNonWhite_row != null &&
(rightNonWhite == null || rightNonWhite < rightNonWhite_row))
{
rightNonWhite = rightNonWhite_row;
}
}
leftNonWhite = leftNonWhite ?? 0;
rightNonWhite = rightNonWhite ?? toWidth;
topNonWhite = topNonWhite ?? 0;
bottomNonWhite = bottomNonWhite ?? toHeight;
// Set crop box with correction to previous crop box
doc.Pages[i].CropBox =
new Aspose.Pdf.Rectangle(
leftNonWhite.Value + prevCropBox.LLX,
(toHeight + prevCropBox.LLY) - bottomNonWhite.Value,
rightNonWhite.Value + doc.Pages[i].CropBox.LLX,
(toHeight + prevCropBox.LLY) - topNonWhite.Value
);
}
finally
{
if (imageBitmapData != null)
{
bmp.UnlockBits(imageBitmapData);
}
}
}
// Save the document
doc.Save(@"D:\hoctap\webasp\CongVan\CongVan\Areas\Admin\Files\Tmp\spacePdf" + i + ".pdf");
}
