Intro I have an issue with digitally signing PDF documents that have been marked as PDF/A - 3A compliant. With PDFBox (latest version, 2.0.24) I get in the end an invalid signature in Adobe Acrobat...

Here is PDF with qualified electronic signature pdf-qualified.invalid.pdf All validation apps show it correct as PAdES-BASELINE-LT, however Adobe Reader shows it invalid. What is wrong with this di...

I'm using DSS to sign Pdf documents. I need these docs to be timestamped and LTV enabled (PAdES LTV enabled). I'm running into some issues regarding the Revocation data. I'm kinda new to this dom...

I am trying to enable LTV in an already signed PDF document without LTV format. I have found the same example in all cases as described in the links How to enable LTV for a timestamp signature, iTe...

In signature CAdES it's possible create multiple signature sequential or parallel. Signature parallel: in case of contract, when more people have to sign the same document. Each people sign the sam...

We 're trying to sign a PDF document using the CAdES method and the examples in dss-cookbook as a starting point using the latest version (4.6.RC1). Following the example from SignPdfPadesBDetach...

I am signing a pdf document in PADES-LTV signature format with a Document timestamp signature. Usually, signed files are OK. Both signature and document timestamp signature is verified and everyth...