How to digitally sign a PDF in xbase ++ ?

[PedroAlex]

Hello everyone.

Over the years I have always used the "Dcprint On" commands to print invoices and create pdfs.
But now there is a new law in which the invoices in pdf must have a digital signature that guarantees the authenticity and integrity of the pdf.
Someone has or has had to insert a .pfx certificate in a pdf or a digital signature obtained from a certificate store.
Do you know any activeX control or Dll to digitally sign the Pdf?
Any tip can help to save research and testing time.

Many Thanks..

[skiman]

Hi,

Maybe this can help.
https://www.chilkatsoft.com/refdoc/xChilkatPdfRef.html

[PedroAlex]

I have been analyzing chilkat for some time now.
This may be the solution.
I will study this path.
Thank you very much.