public static bool ToImage(string pdfInputPath, string imageOutputPath, string imageName, ImageFormat imageFormat)
{
PDFFile pdfFile = PDFFile.Open(pdfInputPath);
Data.pageCount = pdfFile.PageCount;
int startPageNum = 1;
int endPageNum = Data.pageCount;
Console.WriteLine(imageOutputPath);
if (!Directory.Exists(Data.sourceImageDirpath))
{
Directory.CreateDirectory(Data.sourceImageDirpath);
}
else
{
Directory.Delete(Data.sourceImageDirpath, true);
Directory.CreateDirectory(Data.sourceImageDirpath);
}
// validate pageNum
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > pdfFile.PageCount)
{
endPageNum = pdfFile.PageCount;
}
if (startPageNum > endPageNum)
{
startPageNum = endPageNum;
endPageNum = startPageNum;
}
Data.OriginalImages = new List <Bitmap>();
// start to convert each page
for (int i = startPageNum; i <= endPageNum; i++)
{
float pageWidth = (float)(pdfFile.GetPageSize(i - 1).Width / 72);
//float pageHeight = (float)(pdfFile.GetPageSize(i - 1).Height / 72);
float resolution = Data.panelWidth / pageWidth;
//Bitmap pageImage = pdfFile.GetPageImage(i - 1, 56 * (int)definition);
Bitmap pageImage = pdfFile.GetPageImage(i - 1, resolution);
//if (!Directory.Exists(imageOutputPath))
// Directory.CreateDirectory(imageOutputPath + "\\images");
pageImage.Save(imageOutputPath + "\\" + imageName + i.ToString() + "." + imageFormat.ToString(), imageFormat);
string imgPath = imageOutputPath + "\\" + imageName + i.ToString() + "." + imageFormat.ToString();
Data.OriginalImages.Add(new Bitmap(GetCopyImage(imgPath)));
//File.Delete(imgPath);
//Console.WriteLine($"page {i} converted, width:{Data.OriginalImages[i - 1].Width} height:{Data.OriginalImages[i - 1].Height}");
}
pdfFile.Dispose();
//Data.OriginalImages.Clear();
//File.Delete(imageOutputPath + "\\" + imageName + "1." + imageFormat.ToString());
return(true);
}
public bool OpenPdfFile(Stream stream)
{
//if (this.FileName == fileName)
//{
// return true;
//}
CloseFile();
pdfFile = PDFFile.Open(stream);
if (pdfFile == null)
{
return(false);
}
if (pdfFile.PageCount == 0)
{
pdfFile.Dispose();
pdfFile = null;
return(false);
}
//this.FileName = fileName;
double s = 96.0 / 72.0;
for (int i = 0; i < pdfFile.PageCount; i++)
{
PDFSize size = pdfFile.GetPageSize(i);
PdfPageInfo page = new PdfPageInfo(i, (int)(size.Width * s), (int)(size.Height * s));
this.Pages.Add(page);
}
double scale = (double)this.Height / (double)this.Width;
double pdfScale = this.Pages[0].PdfHeight / this.Pages[0].PdfWidth;
if (scale < pdfScale)
{
SetScale((double)this.Height / this.Pages[0].PdfHeight);
}
else
{
SetScale((double)this.Width / this.Pages[0].PdfWidth);
}
MoveToPage(0);
return(true);
}
public MemoryStream GetPdfImagePageStream(string pdfInputPath, int pageIndex, ImageFormat format, int width = 1600, int height = 2560, int quality = 10)
{
try
{
//pdf处理插件
PDFFile pdfFile = PDFFile.Open(pdfInputPath);
int total = pdfFile.PageCount;
#region 防止异常参数
if (pageIndex < 0)
{
pageIndex = 0;
}
if (pageIndex > total)
{
pageIndex = total - 1;
}
if (quality < 1)
{
quality = 1;
}
if (quality > 10)
{
quality = 10;
}
if (width <= 0)
{
width = 1;
}
if (height <= 0)
{
height = 1;
}
#endregion
//pdf转换图片
SizeF pageSize = pdfFile.GetPageSize(pageIndex);
Bitmap pageImage = pdfFile.GetPageImage(pageIndex, 56 * quality);
MemoryStream ms = new MemoryStream();
pageImage.Save(ms, format);
//原图
Image img = Image.FromStream(ms, true);
double ratio = (double)width / (double)height;
double oRatio = (double)img.Width / (double)img.Height;
int sbWidth = 0;
int sbHeight = 0;
int outX = 0;
int outY = 0;
if (oRatio < ratio)
{
sbWidth = (int)(img.Width * ((double)height / (double)(img.Height)));
sbHeight = height;
outX = (width - sbWidth) / 2;
}
else
{
sbHeight = (int)(img.Height * ((double)width / (double)(img.Width)));
sbWidth = width;
outY = (height - sbHeight) / 2;
}
//缩放
Image sbImg = new Bitmap(sbWidth, sbHeight);
Graphics sbGra = Graphics.FromImage(sbImg);
sbGra.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
sbGra.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
sbGra.Clear(Color.White);
sbGra.DrawImage(img, new System.Drawing.Rectangle(0, 0, sbWidth, sbHeight), new System.Drawing.Rectangle(0, 0, img.Width, img.Height), System.Drawing.GraphicsUnit.Pixel);
//补白
Image outImg = new System.Drawing.Bitmap(width, height);
Graphics outGra = System.Drawing.Graphics.FromImage(outImg);
outGra.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
outGra.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
outGra.Clear(Color.White);
outGra.DrawImage(sbImg, new System.Drawing.Rectangle(outX, outY, sbWidth, sbHeight), new System.Drawing.Rectangle(0, 0, sbWidth, sbHeight), System.Drawing.GraphicsUnit.Pixel);
MemoryStream outMs = new MemoryStream();
outImg.Save(outMs, format);
sbImg.Dispose();
outImg.Dispose();
img.Dispose();
return(outMs);
}
catch (Exception ex)
{
}
return(new MemoryStream());
}
public bool pdf_Printer_fast(printerParam param, int copys, out string resultString)
{
resultString = "";
PDFFile pdf = PDFFile.Open(param.FileName);
try
{
PrinterSettings settings = new PrinterSettings();
settings.PrinterName = param.printerName;
settings.PrintToFile = false;
if (!settings.IsValid)
{
throw new Exception("打印机：" + param.printerName + "无效");
}
//设置纸张大小（可以不设置，取默认设置）3.90 in, 8.65 in
PaperSize ps = new PaperSize("test", 4, 9);
ps.RawKind = 9; //如果是自定义纸张，就要大于118，（A4值为9，详细纸张类型与值的对照请看http://msdn.microsoft.com/zh-tw/library/system.drawing.printing.papersize.rawkind(v=vs.85).aspx）
O2S.Components.PDFRender4NET.Printing.PDFPrintSettings pdfPrintSettings = new O2S.Components.PDFRender4NET.Printing.PDFPrintSettings(settings);
pdfPrintSettings.PaperSize = ps;
pdfPrintSettings.PageScaling = O2S.Components.PDFRender4NET.Printing.PageScaling.FitToPrinterMarginsProportional;
pdfPrintSettings.PrinterSettings.Collate = true;
if (pdf.GetPageSize(0).Width > pdf.GetPageSize(0).Height)
{
pdfPrintSettings.PrinterSettings.DefaultPageSettings.Landscape = true;
}
else
{
pdfPrintSettings.PrinterSettings.DefaultPageSettings.Landscape = false;
}
pdfPrintSettings.PrinterSettings.Copies = Convert.ToInt16(copys);
if (!param.isColor)
{
if (pdfPrintSettings.PrinterSettings.PaperSources.Count <= param.PaperSource)
{
//MessageBox.Show("纸盒参数错误！");
throw new Exception("纸盒参数错误！");
}
else
{
pdfPrintSettings.PaperSource = pdfPrintSettings.PrinterSettings.PaperSources[param.PaperSource];
}
}
else
{
for (int i = 0; i < pdfPrintSettings.PrinterSettings.PaperSources.Count; i++)
{
if (pdfPrintSettings.PrinterSettings.PaperSources[i].SourceName.ToString().Contains("纸盘 " + (param.PaperSource + 1).ToString()))
{
pdfPrintSettings.PaperSource = pdfPrintSettings.PrinterSettings.PaperSources[i];
}
}
if (pdfPrintSettings.PaperSource == null)
{
throw new Exception("纸盒参数错误！");
}
}
pdfPrintSettings.PrinterSettings.DefaultPageSettings.Margins.Left = Math.Max(0, (int)(pdfPrintSettings.PrinterSettings.DefaultPageSettings.PaperSize.Width - pdf.GetPageSize(0).Width) / 2);
pdfPrintSettings.PrinterSettings.DefaultPageSettings.Margins.Top = Math.Max(0, (int)(pdfPrintSettings.PrinterSettings.DefaultPageSettings.PaperSize.Height - pdf.GetPageSize(0).Height) / 2);
if (param.isColor)
{
pdfPrintSettings.PrinterSettings.DefaultPageSettings.Color = true;
}
bool isDuplex = pdfPrintSettings.PrinterSettings.CanDuplex;
if (!isDuplex)
{
if (param.DoubleForm)
{
throw new Exception("该打印机不支持双面打印！");
}
else
{
pdfPrintSettings.PrinterSettings.Duplex = System.Drawing.Printing.Duplex.Simplex;
}
}
else
{
if (param.DoubleForm)
{
if (pdf.GetPageSize(0).Width > pdf.GetPageSize(0).Height)
{
pdfPrintSettings.PrinterSettings.Duplex = System.Drawing.Printing.Duplex.Horizontal;
}
else
{
pdfPrintSettings.PrinterSettings.Duplex = System.Drawing.Printing.Duplex.Vertical;
}
}
else
{
pdfPrintSettings.PrinterSettings.Duplex = System.Drawing.Printing.Duplex.Simplex;
}
}
pdf.Print(pdfPrintSettings);
pdf.Dispose();
resultString = "";
return(true);
}
catch (Exception ex)
{
resultString += ex.Message + ";";
pdf.Dispose();
return(false);
}
}
public static void ConvertPDF2Image(string pdfInputPath, string imageOutputPath, string imageName, ImageFormat imageFormat)
{
PDFFile pdfFile = PDFFile.Open(pdfInputPath);
DATA.pageCount = pdfFile.PageCount;
int startPageNum = 1;
int endPageNum = DATA.pageCount;
Console.WriteLine(imageOutputPath);
if (!Directory.Exists(imageOutputPath))
{
Directory.CreateDirectory(imageOutputPath);
}
else
{
Directory.Delete(imageOutputPath, true);
Directory.CreateDirectory(imageOutputPath);
}
// validate pageNum
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > pdfFile.PageCount)
{
endPageNum = pdfFile.PageCount;
}
if (startPageNum > endPageNum)
{
int tempPageNum = startPageNum;
startPageNum = endPageNum;
endPageNum = startPageNum;
}
DATA.OriginalImages = new List <Bitmap>();
//DATA.AnnotatedImages = new List<Bitmap>();
// start to convert each page
for (int i = startPageNum; i <= endPageNum; i++)
{
float pageWidth = pdfFile.GetPageSize(i - 1).Width / 72;
float pageHeight = pdfFile.GetPageSize(i - 1).Height / 72;
float resolution = DATA.panelWidth / pageWidth;
//Bitmap pageImage = pdfFile.GetPageImage(i - 1, 56 * (int)definition);
Bitmap pageImage = pdfFile.GetPageImage(i - 1, resolution);
if (!Directory.Exists(imageOutputPath))
{
Directory.CreateDirectory(imageOutputPath + "\\images");
}
pageImage.Save(imageOutputPath + "\\" + imageName + i.ToString() + "." + imageFormat.ToString(), imageFormat);
DATA.OriginalImages.Add(new Bitmap(imageOutputPath + "\\" + imageName + i.ToString() + "." + imageFormat.ToString()));
pageImage.Dispose();
Console.WriteLine($"page {i} converted, width:{DATA.OriginalImages[i-1].Width} height:{DATA.OriginalImages[i - 1].Height}");
}
//foreach (var item in DATA.OriginalImages)
//{
// DATA.AnnotatedImages.Add(item);
//}
//DATA.AnnotatedImages = DATA.OriginalImages;
pdfFile.Dispose();
Console.WriteLine("Done!");
}