Hi Guys, Hope you are doing great. After doing some digging and not getting the desired results i thought that why not contact the developers of the PDFBOX. I have a situation where there is a PDF which is password protected. I know the user and owner password and i need to digitally sign it. I successfully got the hang of signing part for unrestricted file. Now when i try to add signature to a secure file i get the following exception:
[image: Inline image 1] I hope that you guys can point me in the right direction. I am using PDFBOX 2.0.0 and i used the code given in the example. Looking forward to your response. Thanks, Best Regards, Adeel Arif
