public bool WriteDocument(List <byte[]> images, string file_out) { XpsDocument doc = null; IXpsFixedDocumentSequenceWriter docSeqWriter = null; IXpsFixedDocumentWriter docWriter = null; if (LogHelper.CanDebug()) { LogHelper.Begin("XpsHelper.WriteDocument"); } try { // xps doc does not manage overwrite, so delete before if exist if (File.Exists(file_out)) { File.Delete(file_out); } // create the document doc = new XpsDocument(file_out, FileAccess.ReadWrite, CompressionOption.NotCompressed); // Create the document sequence docSeqWriter = doc.AddFixedDocumentSequence(); // Create the document docWriter = docSeqWriter.AddFixedDocument(); for (int i = 0; i < images.Count; ++i) { // Create the Page IXpsFixedPageWriter pageWriter = docWriter.AddFixedPage(); // Get the XmlWriter XmlWriter xmlWriter = pageWriter.XmlWriter; //create the xps image resource XpsImage xpsImage = pageWriter.AddImage(XpsImageType.JpegImageType); using (Stream dstImageStream = xpsImage.GetStream()) { dstImageStream.Write(images[i], 0, images[i].Length); xpsImage.Commit(); } //this is just to get the real WPF image size as WPF display units and not image pixel size !! using (MemoryStream ms = new MemoryStream(images[i])) { BitmapImage myImage = new BitmapImage(); myImage.BeginInit(); myImage.CacheOption = BitmapCacheOption.OnLoad; myImage.StreamSource = ms; myImage.EndInit(); //write the page WritePageContent(xmlWriter, xpsImage, myImage.Width, myImage.Height); } //with the first page, create the thumbnail of the xps document if (i == 0) { XpsThumbnail thumb = doc.AddThumbnail(XpsImageType.JpegImageType); using (MemoryStream ms = new MemoryStream(images[i])) { BitmapImage thumbImage = new BitmapImage(); thumbImage.BeginInit(); thumbImage.DecodePixelWidth = 256; thumbImage.CacheOption = BitmapCacheOption.OnLoad; thumbImage.StreamSource = ms; thumbImage.EndInit(); using (Stream xpsThumbStream = thumb.GetStream()) { JpegBitmapEncoder encoder = new JpegBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(thumbImage)); encoder.Save(xpsThumbStream); } } thumb.Commit(); } xmlWriter.Flush(); // Close the page pageWriter.Commit(); } return(true); } catch (Exception err) { LogHelper.Manage("XpsHelper.WriteDocument", err); return(false); } finally { if (docWriter != null) { docWriter.Commit(); } if (docSeqWriter != null) { docSeqWriter.Commit(); } if (doc != null) { doc.Close(); } LogHelper.End("XpsHelper.WriteDocument"); } }