0
votes
0answers
11 views

Using Ghostscript to digitally sign a PDF

How do I digitally sign a PDF file using Ghostscript (gs), such as by specifying a *.p12 certificate backup file? thanks
0
votes
1answer
41 views

How does advanced digital signature on pdf work by concept (on receiver side)?

If someone like an Agency or something wants me to send a pdf signed with an advanced electronic signature, what does that mean for the receiver? I could now make a local keystore and use any program ...
2
votes
1answer
332 views

Embed a GPG Signature in a PDF File

Is it possible to embed GPG signatures in PDF files the way it can be done with X.509 signatures? (I've been using JSignPDF to sign my invoices so far, but now the law has relaxed a bit, and it ...
2
votes
1answer
367 views

Preventing PDF document from having a digital signature added with long term signature validation?

I'm running into a new issue with PDF file sizes. It seems that Acrobat X and above now have by default enabled a preference called "Include Signature’s Revocation Status When Signing". Essentially ...
2
votes
0answers
1k views

Export Microsoft Word document for Adobe Acrobat signature

When I save a MS Word document (.docx) as a PDF, I am not able to sign it in Adobe Acrobat. Is there a way to export an MS Word doc to a signable PDF? Third party products are an option as well.
0
votes
1answer
445 views

comodo pdf sign doesn't verify in adobe, using JSignPdf

I am using jSignPDF to sign PDF with a PKCS12 i purchased from COMODO INC. But when viewing the signature in Adobe Acrobat i get, "Signature Verification Failed". How can i sign a PDF and get the ...
4
votes
2answers
2k views

How can I digitally sign a PDF document quickly and cheaply?

I need to digital sign a PDF document. However, Acrobat reader does not let me sign documents. I just need to sign the document, not edit it. Do I need to buy the full Acrobat software? Or is there ...
7
votes
4answers
2k views

Is there a free PDF printer / distiller that creates signable documents?

I've used various methods (mentioned elsewhere on this site) to create PDFs, using a printer driver or converting from PostScript, etc. The common problem is that if I open any of the output files in ...