Search found 5 matches

by nenea
Fri Dec 28, 2018 11:38 am
Forum: PDF
Topic: PDF file loaded and saved seems to be modified
Replies: 2
Views: 247

Re: PDF file loaded and saved seems to be modified

Solved by myself.

Using SaveToFileInc did the work.
by nenea
Thu Dec 27, 2018 7:15 pm
Forum: PDF
Topic: PDF file loaded and saved seems to be modified
Replies: 2
Views: 247

PDF file loaded and saved seems to be modified

Hi all, I noticed that simply opening and saving a PDF file results in a modified file. Example: In filePath there is a signed PDF. Opening with Acrobat Reader validate the signature. Then GdPicturePDF _oGdPicturePDF = new GdPicturePDF(); _oGdPicturePDF.LoadFromFile(filePath, false); _oGdPicturePDF....
by nenea
Fri Nov 02, 2018 12:02 pm
Forum: DocuVieware
Topic: View digital signatures with DocuVieware
Replies: 1
Views: 383

View digital signatures with DocuVieware

Hi all,
I'm interested in using DocuVieware to display PDF.

Is there a way to see existing digital signatures on PDF in DocuVieware.
I didn't find a way to do it...

Thank you,
Nazareno Enea
by nenea
Thu Jan 05, 2017 3:26 pm
Forum: PDF
Topic: Modify signed PDF without compromising the signature
Replies: 5
Views: 22754

Re: Modify signed PDF without compromising the signature

Hi Jean-Luc, happy new year!

Using the SaveToFileInc method could be ok, but if I open the resulting file with Acrobat Reader, I receive an error, even if I can recover the properly signed version of the file.

Is there a method to add an annotation to the PDF file?

Regards,
Nazareno
by nenea
Mon Jan 02, 2017 1:03 pm
Forum: PDF
Topic: Modify signed PDF without compromising the signature
Replies: 5
Views: 22754

Modify signed PDF without compromising the signature

Hi all, I'm trying to edit a signed PDF without compromising the signature. In Adobe Acrobat Reader I'm able to insert a note in the signed PDF without compromising the signature (Acrobat Reader gives a warning reporting that the note has been inserted after the signature). I tried to modify the PDF...