PdfRenderer.ExportAsImage do not export signature

Question

When I try to export pdf as an image, the signature on the top of the first page just disappears.

Do you have any suggestions?

Code:

PdfRenderer pdfRenderer = new PdfRenderer();
pdfRenderer.Load(attachment.Data);
Bitmap[] bitmapImages = pdfRenderer.ExportAsImage(0, pdfRenderer.PageCount - 1);

See attachment for input file and output image (first page).

Thank you,

David

Attachment: SouhrnnyList_35533180.zip

Vasugi Sivajothi · Answer

Hi David,Currently, there is no direct support to export
the image with the digital signature. However, you can flatten the existing digital signature
field by using Flatten property. Please use the below code snippet
before performing export as an image action.Code Snippet:

FileStream docStream = new FileStream("../../../PruvodniList-signed.pdf", FileMode.Open, FileAccess.Read);
   
              PdfLoadedDocument loadedDocument
  = new PdfLoadedDocument(docStream);
   
              //Gets the page
   
              PdfLoadedPage page =
  loadedDocument.Pages[0] as PdfLoadedPage;
   
              //Get the loaded form.
   
              PdfLoadedForm loadedForm =
  loadedDocument.Form;
   
              //Load the signature
  field from field
   
              PdfLoadedSignatureField
  loadedSignatureField = loadedForm.Fields[0] as PdfLoadedSignatureField;
   
              loadedSignatureField.Flatten = true;
   
              //Save the document into
  stream
   
              MemoryStream stream = new MemoryStream();
   
              loadedDocument.Save(stream);
   
              stream.Position = 0;
   
              //Close the documents
   
              loadedDocument.Close(true);
             
  File.WriteAllBytes("../../../FlattenField.pdf", stream.ToArray());

https://help.syncfusion.com/cr/file-formats/Syncfusion.Pdf.Interactive.PdfField.html#Syncfusion_Pdf_Interactive_PdfField_Flattenhttps://help.syncfusion.com/file-formats/pdf/working-with-forms#removing-editing-capability-of-form-fieldsWe have shared the sample for your reference
which can be downloaded from the below link.Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/ExportAsImageWithSignature-2106126907Kindly try this and let us know if you have any
concerns about this.Regards,Vasugi.

David Eisler · Answer

Hi Vasugi,Your workaround works for me.Regards,David

Shamini Kiruba Sobers · Answer

Hi David,Thanks for the update.Regards,Shamini