"Feature not supported", PdfCompressor.Write

Hi.

I'm evaluating the LT15 PDF plugin for C# within a WPF application and I'm having trouble writing out a PDF document. I've read elsewhere that this can be due to missing assembly references, however I am sure I've included all that are relevant. Because I am adding JPG images to the PDF, I have referenced:

• Leadtools.dll
• Leadtools.Codecs.dll
• Leadtools.Codecs.Cmp.dll
• Leadtools.Codecs.Pdf.dll
• Leadtools.Pdf.dll
  

My code is:
            RasterSupport.Unlock(RasterSupportType.PdfAdvanced, "");
            RasterSupport.Unlock(RasterSupportType.PdfRead, "");
            RasterSupport.Unlock(RasterSupportType.PdfSave, "");
            // Load an image
            RasterCodecs.Startup();
            RasterCodecs codecs = new RasterCodecs();
            codecs.ThrowExceptionsOnInvalidImages = true;

            PdfCompressor pdfCompressor = new PdfCompressor();
            PdfCompressorOptions pdfCompressorOptions = new PdfCompressorOptions();
            PdfCompressorCompressionTypes compressionTypes = new PdfCompressorCompressionTypes();

            //Sets compression types needed for each segment
            compressionTypes.Comp1Bit = PdfCompressor1BitCompression.Zip1Bit;
            compressionTypes.Comp2Bit = PdfCompressor2BitCompression.Lzw2Bit;
            compressionTypes.CompPicture = PdfCompressorPictureCompression.JpgPic;
            compressionTypes.QFactor = 2;

            //Flags for used compression types should be set
            compressionTypes.Flags = EnabledCompressionsFlags.EnableOneBit | EnabledCompressionsFlags.EnableTwoBit | EnabledCompressionsFlags.EnablePicture;

            pdfCompressor.SetCompression(compressionTypes);

            int pageNum = 1;
            DirectoryInfo dInfo = Directory.CreateDirectory(InfoProvider.OutputPath);
            FileInfo[] jpgFiles = dInfo.GetFiles(Path.GetFileNameWithoutExtension(InfoProvider.OutputFile) + "_*.jpg");

            foreach (FileInfo jpgFile in jpgFiles)
            {
                using (RasterImage image = codecs.Load(jpgFile.FullName))
                {
                    pdfCompressor.Insert(image);
                    //pdfCompressor.SegmentImage += new EventHandler<PdfCompressorSegmentImageEventArgs>(pdfCompressor_SegmentImage_PdfDocument);
                }

                jpgFile.Delete();
            }

            string filePath = InfoProvider.OutputPath + Path.GetFileNameWithoutExtension(InfoProvider.OutputFile) + ".pdf";
            pdfCompressor.Write(filePath);
            pdfCompressor.Dispose();

            RasterCodecs.Shutdown();

You are
correct that normally, 'Feature not supported' exceptions are generated when your application is missing some DLLs.
Please check 2 things:
1. If
you run our pre-built C# Main demo shipped with the toolkit and open any image, can you save it as PDF using the File => Save menu?
2. If
you use codecs.Save() instead of pdfCompressor.Write() to save the image as PDF, does it work?

Hi Adnan

1. The CSPdfComp demo app works correctly, and I've looked at the code but I can't find anything I've missed - except that I have a WPF application and the demo is a WinForms app. This isn't likely to cause a problem is it?
2. Codecs.Save also works correctly, however these is a huge difference in file size, even using RasterImageFormat.RasPdfJpeg.

Regards, Andrew

Can you
try to isolate the exception "Feature not supported" that you get in
a small test project (not your full application) so I can reproduce this issue here. If you want to send the project, please put it in a ZIP or RAR file.

About
file size, you can use RasPdfLzw format instead of RasPdfJpeg to reduce the file size.

I fixed this issue by removing the LeadTools.Codecs.Pdf dll from the project.

Scratch my last response...the trick for me was
1. Unlocking the PDFAdvanced
2. Adding the following filters to my project (since the PDFCompressor uses those types)

Normal
0




false
false
false

EN-US
ZH-CN
AR-SA












































































































































































/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;}

- leadtools.codecs.jbg

- leadtools.codecs.jb2

- leadtools.codecs.cmp

- leadtools.codecs.fax

- leadtools.codecs.tif