GetRasterPdfInfo(Stream,int) Method

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
 
 
private static void CodecsRasterPdfInfoExample() 
{ 
   string multiPageRasterPdfFileName = Path.Combine(LEAD_VARS.ImagesDir, "MultiPageRasterPdf.pdf"); 
   string pagesPdfFileNames = Path.Combine(LEAD_VARS.ImagesDir, "Page{0}.pdf"); 
 
   // Create a 4 pages PDF file 
   CreateMultiPageRasterPdfFile(multiPageRasterPdfFileName); 
 
   // Without prior information, we will split this multi-page PDF file into 
   // multiple single page PDF files with original size, resolution, bit-depth and compression 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      int pagesSaved = 0; 
 
      // Get the file information 
      using (CodecsImageInfo imageInfo = codecs.GetInformation(multiPageRasterPdfFileName, true)) 
      { 
         Debug.WriteLine( 
            "Information: Format:\n Format: {0}\n Pages: {1}\n Bits/Pixel: {2}\n Size: {3} by {4}\n Resolution: {5} by {6}", 
            imageInfo.Format, imageInfo.TotalPages, imageInfo.BitsPerPixel, imageInfo.Width, imageInfo.Height, imageInfo.XResolution, imageInfo.YResolution); 
         Debug.WriteLine("-----------------------"); 
 
         // Now show the PDF specific information 
         // Notice: GetInformation will return RasPdf as the format for all PDF files 
         // regardless of the actual compression 
         if (imageInfo.Format == RasterImageFormat.RasPdf) 
         { 
            Debug.WriteLine("Image is PDF, getting the specific info for each page"); 
 
            for (int i = 0; i < imageInfo.TotalPages; i++) 
            { 
               int pageNumber = i + 1; 
 
               CodecsRasterPdfInfo pdfInfo = codecs.GetRasterPdfInfo(multiPageRasterPdfFileName, i + 1); 
               if (pageNumber == 1) 
               { 
                  Debug.WriteLine(" LEAD PDF?: {0}", pdfInfo.IsLeadPdf); 
                  Debug.WriteLine(" Version: {0}", pdfInfo.Version); 
               } 
 
               if (pdfInfo.IsLeadPdf) 
               { 
                  Debug.WriteLine( 
                     "Page {0} of {1} info:\n Bits/Pixel: {2}\n Size: {3} by {4}\n Resolution: {5} by {6}\n Format: {7}", 
                     pageNumber, imageInfo.TotalPages, pdfInfo.BitsPerPixel, pdfInfo.Width, pdfInfo.Height, pdfInfo.XResolution, pdfInfo.YResolution, pdfInfo.Format); 
                  Debug.WriteLine("-----------------------"); 
 
                  // Load this page with its original parameters 
                  codecs.Options.RasterizeDocument.Load.XResolution = pdfInfo.XResolution; 
                  codecs.Options.RasterizeDocument.Load.YResolution = pdfInfo.YResolution; 
                  codecs.Options.Pdf.Load.DisplayDepth = pdfInfo.BitsPerPixel; 
 
                  using (RasterImage pageImage = codecs.Load(multiPageRasterPdfFileName, 0, CodecsLoadByteOrder.BgrOrGray, pageNumber, pageNumber)) 
                  { 
                     Debug.WriteLine( 
                        "Page {0} of {1} loaded:\n Bits/Pixel: {2}\n Size: {3} by {4}\n Resolution: {5} by {6}", 
                        pageNumber, imageInfo.TotalPages, pageImage.BitsPerPixel, pageImage.Width, pageImage.Height, pageImage.XResolution, pageImage.YResolution); 
                     Debug.WriteLine("-----------------------"); 
 
                     // Setup the PDF save options 
                     codecs.Options.Pdf.Save.UseImageResolution = true; 
                     codecs.Options.Pdf.Save.Version = pdfInfo.Version; 
 
                     // Save this page to a separate file 
                     string pagePdfFileName = string.Format(pagesPdfFileNames, pageNumber); 
                     codecs.Save(pageImage, pagePdfFileName, pdfInfo.Format, pdfInfo.BitsPerPixel); 
                     pagesSaved++; 
                  } 
               } 
            } 
         } 
      } 
 
      // We are done, now show the info of the generated files 
      for (int i = 0; i < pagesSaved; i++) 
      { 
         int pageNumber = i + 1; 
         string pagePdfFileName = string.Format(pagesPdfFileNames, pageNumber); 
 
         CodecsRasterPdfInfo pdfInfo = codecs.GetRasterPdfInfo(pagePdfFileName, 1); 
         Debug.WriteLine( 
            "Page {0} of {1} info:\n Bits/Pixel: {2}\n Size: {3} by {4}\n Resolution: {5} by {6}\n Format: {7}", 
            pageNumber, pagesSaved, pdfInfo.BitsPerPixel, pdfInfo.Width, pdfInfo.Height, pdfInfo.XResolution, pdfInfo.YResolution, pdfInfo.Format); 
         Debug.WriteLine("-----------------------"); 
      } 
   } 
} 
 
private static void CreateMultiPageRasterPdfFile(string pdfFileName) 
{ 
   string sourceFile = Path.Combine(LEAD_VARS.ImagesDir, "Sample1.cmp"); 
 
   // Delete the destination PDF file if exists 
   if (System.IO.File.Exists(pdfFileName)) 
   { 
      System.IO.File.Delete(pdfFileName); 
   } 
 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      // Save to PDF v1.4 
      codecs.Options.Pdf.Save.Version = CodecsRasterPdfVersion.V14; 
      // Save using image resolution 
      codecs.Options.Pdf.Save.UseImageResolution = true; 
 
      // Load the source file to use for each page 
      using (RasterImage pageImage = codecs.Load(sourceFile, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) 
      { 
         Debug.WriteLine( 
            "Original image dimension:\n Size: {0} by {1}\n Resolution: {2} by {3}", 
            pageImage.Width, pageImage.Height, pageImage.XResolution, pageImage.YResolution); 
 
         // Array of bits/pixel and compression to use when saving the pages 
         int[] bitsPerPixel = 
         { 
        1, 
        8, 
        24 
      }; 
         RasterImageFormat[] formats = 
         { 
        RasterImageFormat.RasPdfG4, 
        RasterImageFormat.RasPdfLzw, 
        RasterImageFormat.RasPdfJpeg422 
      }; 
 
         int pageCount = bitsPerPixel.Length; 
         for (int i = 0; i < pageCount; i++) 
         { 
            // Append this page with given format 
            Debug.WriteLine("Saving page {0} of {1} using {2} at {3}", i + 1, pageCount, bitsPerPixel[i], formats[i]); 
            codecs.Save(pageImage, pdfFileName, formats[i], bitsPerPixel[i], 1, 1, -1, CodecsSavePageMode.Append); 
         } 
      } 
 
      Debug.WriteLine("-----------------------"); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}