Good afternoon, in Exstream the output PDFs can be edited but I need to add security so that they do not edit the PDFs, can you help me how to do it or if there is a way
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We created a Java filter that signs the pdf with a certificate. For this we used : https://www.e-iceblue.com/Tutorials/Java/Spire.PDF-for-Java/Program-Guide/Security/Add-Digital-Signature-to-PDF-in-Java.html?_gl=1*ax2agq*_up*MQ..*_ga*NjA4OTEyMjkwLjE3MTQzODE4Nzc.*_ga_0P9F0Q9F33*MTcxNDM4MTg3Ny4xLjEuMTcxNDM4MTk3Mi4wLjAuMA..&gclid=Cj0KCQjwir2xBhC_ARIsAMTXk84kquUaEDz3XEa83UQDFnxH44kwS55tRBbh3POfDcqGwfIxPultuGwaAhWCEALw_wcB
You don't need to add some picture for an overlay or anything, you can simply sign it with a certificate. Not sure if this is what you are looking for, but it may give a clue as to what may be a solution.
