Sign pdf with associated image not showed

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   Hello. Using 9.16, I try to sign a pdf with a PFX and add an image signature.I use the next code from Roman Moderator on this thread:  http://www.quickpdf.org/forum/topic2563&OB=ASC.html

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procedure TForm7.btnNewSignProcessFromFileClick(Sender: TObject);
var
SignProcessID: Integer;
begin
    DPL := TDebenuPDFLibrary0914.Create;
    if DPL.UnlockKey('..license_key_goes_here') = 1 then
    begin
      DPL.DrawText(100, 700, 'This is the file to be signed');
      DPL.SaveToFile('TheUnsignedFile.pdf');

      SignProcessID := DPL.NewSignProcessFromFile('TheUnsignedFile.pdf', '');
      if (SignProcessID > 0) then
      begin
        DPL.SetSignProcessPFXFromFile(SignProcessID, 'qpl_test.pfx', 'testing');
        DPL.SetSignProcessInfo(SignProcessID, 'To test digital signatures', 'The World', 'Contact me');
        DPL.SetSignProcessField(SignProcessID, 'Contract Signature');
        DPL.SetSignProcessFieldBounds(SignProcessID, 100, 600, 200, 100);
        DPL.SetSignProcessFieldImageFromFile(SignProcessID, 'visualsignature.jpg', 0);
        DPL.EndSignProcessToFile(SignProcessID, 'TheSignedFile.pdf');
      end;
    end;
end;
------------------------------------------------

The PDF file is signed good, but I can't see the image. I have tried changing the bounds, but nothing changes.
Any suggestion?

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briast Members Profile Find Members Posts Beginner Joined: 22 Oct 13 Status: Offline Points: 4	Post Options Post Reply Quote briast Report Post Thanks(0) Quote Reply Topic: Sign pdf with associated image not showed Posted: 22 Oct 13 at 9:58AM
	Hello. Using 9.16, I try to sign a pdf with a PFX and add an image signature. I use the next code from Roman Moderator on this thread: http://www.quickpdf.org/forum/topic2563&OB=ASC.html ------------------------------------------------ procedure TForm7.btnNewSignProcessFromFileClick(Sender: TObject); var SignProcessID: Integer; begin DPL := TDebenuPDFLibrary0914.Create; if DPL.UnlockKey('..license_key_goes_here') = 1 then begin DPL.DrawText(100, 700, 'This is the file to be signed'); DPL.SaveToFile('TheUnsignedFile.pdf'); SignProcessID := DPL.NewSignProcessFromFile('TheUnsignedFile.pdf', ''); if (SignProcessID > 0) then begin DPL.SetSignProcessPFXFromFile(SignProcessID, 'qpl_test.pfx', 'testing'); DPL.SetSignProcessInfo(SignProcessID, 'To test digital signatures', 'The World', 'Contact me'); DPL.SetSignProcessField(SignProcessID, 'Contract Signature'); DPL.SetSignProcessFieldBounds(SignProcessID, 100, 600, 200, 100); DPL.SetSignProcessFieldImageFromFile(SignProcessID, 'visualsignature.jpg', 0); DPL.EndSignProcessToFile(SignProcessID, 'TheSignedFile.pdf'); end; end; end; ------------------------------------------------ The PDF file is signed good, but I can't see the image. I have tried changing the bounds, but nothing changes. Any suggestion?

briast Members Profile Find Members Posts Beginner Joined: 22 Oct 13 Status: Offline Points: 4	Post Options Post Reply Quote briast Report Post Thanks(0) Quote Reply Posted: 22 Oct 13 at 11:40AM
	Hi. I have found the problem. If before the sign process you change file permission with EncodePermission and Encrypt, then after sign process, the file is correctly signed but image is hidden. I don't know if that is correct or no.

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3530	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 23 Oct 13 at 7:31AM
	Hi Briast, i didn't try it but perhaps it's the line: DPL.SetSignProcessFieldBounds(SignProcessID, 100, 600, 200, 100); The coordinates are for x1, y1, x2, y2 ... i think ;-) So if shown or not have to do where to start and how are the dimensions of your jpg. I think you should use SetOrigin first. Cheers and welcome here, Ingo Edited by Ingo - 23 Oct 13 at 7:31AM
	Cheers, Ingo

briast Members Profile Find Members Posts Beginner Joined: 22 Oct 13 Status: Offline Points: 4	Post Options Post Reply Quote briast Report Post Thanks(0) Quote Reply Posted: 23 Oct 13 at 8:55AM
	Hi. Thanks for your help but as I said, the problem is if I change the permission. If I don't change it, the image is showed without error. I have another question that is how to make this image transparent. I try with png with transparency but it doesn't work.

Rowan Members Profile Find Members Posts Moderator Group Joined: 10 Jan 09 Status: Offline Points: 398	Post Options Post Reply Quote Rowan Report Post Thanks(0) Quote Reply Posted: 18 Nov 13 at 3:42AM
	Hi briast, It is not currently possible to digitally sign a PDF that has already been encrypted. It is also not possible to apply the document permissions to the PDF after it has been signed as that would invalidate the digital signature. Cheers, - Rowan.