PDFsharp & MigraDoc Foundation

Hello

Im trying to sign a PDF multiple times, with a pfx certificate.

When i sign first time, it works fine. i can open the PDF in Acrobat and shows the signature.

When i sign with a second certificate, theres no error, but when i open it in Acrobat, in the signatures pane, the signature becames unrecognizable, and in the properties says "Error inSigDict/Contents illegal data"

the second signature its ok.

So, i believe that the second signature is breaking the first one..

is there some parameter that i have to include to accept multiple signatures ?

many thanks in advanced

There are PRs to support incremental updates, but incremental updates are not yet included in the NuGet packages.

So only use a single signature - or try the code from the PRs on GitHub.

_________________
Best regards
Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)

Thanks for the tip

but im new in this.. and i dont know whats a PR...

can u point me ?

PR stands for Pull Request.
You can download the source code and the PRs from GitHub and compile your own PDFsharp DLLs.

https://github.com/empira/PDFsharp/pull/112

_________________
Best regards
Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)

thanks for the help, but... too much for me...