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PDFSharp - Signing PDF multiple times http://forum.pdfsharp.com/viewtopic.php?f=2&t=4676 |
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Author: | luiscurado [ Mon Sep 16, 2024 6:37 pm ] |
Post subject: | PDFSharp - Signing PDF multiple times |
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 |
Author: | TH-Soft [ Tue Sep 17, 2024 6:14 am ] |
Post subject: | Re: PDFSharp - Signing PDF multiple times |
luiscurado wrote: So, i believe that the second signature is breaking the first one. 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. |
Author: | luiscurado [ Tue Sep 17, 2024 8:24 am ] |
Post subject: | Re: PDFSharp - Signing PDF multiple times |
Thanks for the tip but im new in this.. and i dont know whats a PR... can u point me ? |
Author: | TH-Soft [ Tue Sep 17, 2024 10:48 am ] |
Post subject: | Re: PDFSharp - Signing PDF multiple times |
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 |
Author: | luiscurado [ Tue Sep 17, 2024 5:03 pm ] |
Post subject: | Re: PDFSharp - Signing PDF multiple times |
thanks for the help, but... too much for me... |
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