private bool AddFile(string ofd)
{
if (File.Exists(ofd))
{
if (chkFiles.FindStringExact(ofd) == -1)
{
using (RasterCodecs codecs = new RasterCodecs())
{
int pageCount = codecs.GetTotalPages(ofd);
if (requiredPageCount != pageCount)
{
return(false);
}
}
chkFiles.Items.Add(ofd, true);
chkFiles.TopIndex = chkFiles.Items.Count - 1;
}
// it's already in the list
return(true);
}
return(false);
}
public static void ExportPdfViaSvg(string filename)
{
var outputFile = Path.Combine(Leadtools.Demo.Support.Path.GetOutputPath(), Path.GetFileNameWithoutExtension(filename) + "_Svg.pdf");
// Setup a new RasterCodecs object
using (var codecs = new RasterCodecs())
{
// Check to see if we can use this method
// https://www.leadtools.com/help/leadtools/v19/dh/co/leadtools.codecs~leadtools.codecs.rastercodecs~canloadsvg(string).html
if (!codecs.CanLoadSvg(filename))
{
Console.WriteLine("\nCannot load this file as SVG for conversion to PDF.\nSee: https://www.leadtools.com/help/leadtools/v19/dh/co/leadtools.codecs~leadtools.codecs.rastercodecs~canloadsvg(string).html#remarksSectionHeading");
return;
}
codecs.Options.RasterizeDocument.Load.Resolution = 300;
// Get the number of pages in the input document
var pageCount = codecs.GetTotalPages(filename);
// Create a new instance of the LEADTOOLS Document Writer
var docWriter = new DocumentWriter();
// Set the PDF options
// https://www.leadtools.com/help/leadtools/v19/dh/ft/leadtools.forms.documentwriters~leadtools.forms.documentwriters.pdfdocumentoptions.html
var pdfOptions = docWriter.GetOptions(DocumentFormat.Pdf) as PdfDocumentOptions;
if (pdfOptions != null)
{
pdfOptions.DocumentType = PdfDocumentType.Pdf;
docWriter.SetOptions(DocumentFormat.Pdf, pdfOptions);
}
// Create a new PDF document
docWriter.BeginDocument(outputFile, DocumentFormat.Pdf);
var message = "";
// Loop through all the pages
for (var pageNumber = 1; pageNumber <= pageCount; pageNumber++)
{
// Get the page as SVG
// https://www.leadtools.com/help/leadtools/v19/dh/co/leadtools.codecs~leadtools.codecs.rastercodecs~loadsvg.html
var page = new DocumentSvgPage();
var lastMessageLen = message.Length;
message = string.Format("\rConverting page {0} of {1}", pageNumber, pageCount);
var diff = lastMessageLen - message.Length;
Console.Write("{0}{1}", message, (diff > 0 ? new string( ' ', diff ) : ""));
using (page.SvgDocument = codecs.LoadSvg(filename, pageNumber, null))
{
// Add the page
docWriter.AddPage(page);
}
}
Console.Write("\r{0}\r", new String(' ', message.Length));
// Finally, finish writing the PDF file on disk
docWriter.EndDocument();
}
}
private static void ConvertDocumentToImage(
string inputFile,
string outputFile,
RasterImageFormat outputFormat,
int bitsPerPixel)
{
if (!File.Exists(inputFile))
{
throw new ArgumentException($"{inputFile} not found.", nameof(inputFile));
}
if (bitsPerPixel != 0 && bitsPerPixel != 1 && bitsPerPixel != 2 && bitsPerPixel != 4 &&
bitsPerPixel != 8 && bitsPerPixel != 16 && bitsPerPixel != 24 && bitsPerPixel != 32)
{
throw new ArgumentOutOfRangeException(nameof(bitsPerPixel), bitsPerPixel,
$"Invalid {nameof(bitsPerPixel)} value");
}
using (var codecs = new RasterCodecs())
{
codecs.Options.RasterizeDocument.Load.XResolution = 300;
codecs.Options.RasterizeDocument.Load.YResolution = 300;
// indicates the start of a loop from the same source file
codecs.StartOptimizedLoad();
var totalPages = codecs.GetTotalPages(inputFile);
if (totalPages > 1 && !RasterCodecs.FormatSupportsMultipageSave(outputFormat))
{
Console.WriteLine($"The {outputFormat} format does not support multiple pages.\n"
+ "The resulting file will only contain the only last page of the document.");
}
for (var pageNumber = 1; pageNumber <= totalPages; pageNumber++)
{
Console.WriteLine($"Loading and saving page {pageNumber}");
using (var rasterImage = codecs.Load(inputFile, bitsPerPixel, CodecsLoadByteOrder.Bgr, pageNumber, pageNumber))
codecs.Save(rasterImage, outputFile, outputFormat, bitsPerPixel, 1, -1, 1, CodecsSavePageMode.Append);
}
// indicates the end of the load for the source file
codecs.StopOptimizedLoad();
}
}
public static List <ImageInfo> ConvertDocumentToImage(
string inputFile,
string outputFileTemplate,
RasterImageFormat outputFormat,
int bitsPerPixel,
HashSet <string> justThese)
{
if (justThese == null)
{
justThese = new HashSet <string>();
}
if (!File.Exists(inputFile))
{
throw new ArgumentException($"{inputFile} not found.", nameof(inputFile));
}
if (bitsPerPixel != 0 && bitsPerPixel != 1 && bitsPerPixel != 2 && bitsPerPixel != 4 &&
bitsPerPixel != 8 && bitsPerPixel != 16 && bitsPerPixel != 24 && bitsPerPixel != 32)
{
throw new ArgumentOutOfRangeException(nameof(bitsPerPixel), bitsPerPixel,
$"Invalid {nameof(bitsPerPixel)} value");
}
var retFiles = new List <ImageInfo>();
using (var codecs = new RasterCodecs())
{
codecs.Options.RasterizeDocument.Load.XResolution = 300;
codecs.Options.RasterizeDocument.Load.YResolution = 300;
// indicates the start of a loop from the same source file
codecs.StartOptimizedLoad();
var totalPages = codecs.GetTotalPages(inputFile);
/*
* if (totalPages > 1 && !RasterCodecs.FormatSupportsMultipageSave(outputFormat))
* throw new NotSupportedException(
* $"The {outputFormat} format does not support multiple pages.");
*/
for (var pageNumber = 1; pageNumber <= totalPages; pageNumber++)
{
string newOutfile = outputFileTemplate.Replace("{page}", pageNumber.ToString("D2"));
string stem = Path.GetFileNameWithoutExtension(newOutfile);
if (justThese.Count > 0 && !justThese.Contains(stem))
{
continue;
}
if (File.Exists(newOutfile))
{
logger.Info($"File already exists {newOutfile}");
retFiles.Add(new ImageInfo()
{
ImageFileInfo = new FileInfo(newOutfile)
});
continue;
}
logger.Info($"Loading and saving page {newOutfile}");
var rasterImage =
codecs.Load(inputFile, bitsPerPixel, CodecsLoadByteOrder.Bgr, pageNumber, pageNumber);
codecs.Save(rasterImage, newOutfile, outputFormat, bitsPerPixel, 1, -1, 1, CodecsSavePageMode.Replace);
retFiles.Add(new ImageInfo()
{
Image = rasterImage, ImageFileInfo = new FileInfo(newOutfile)
});
}
// indicates the end of the load for the source file
codecs.StopOptimizedLoad();
}
return(retFiles);
}
