Hello, I'm trying to prevent the users from copying content from pdf using the pdfbox with the following code: File filePdf = fileService.addFileToDir(fileInBase64) PDDocument pdd = PDDocument.load(filePdf)
AccessPermission ap = new AccessPermission() ap.setCanExtractContent(false) StandardProtectionPolicy stpp = new StandardProtectionPolicy(pdfLockPassword, "", ap) stpp.setEncryptionKeyLength(128) stpp.setPreferAES(true); stpp.setPermissions(ap) pdd.protect(stpp) When opening the pdf file from Adobe Acrobat or Microsoft Edge, the copy shortcut doesn't work and therefore the content isn't copied. However, opening the file with Chrome and Opera is allowing the content to be copied using the shortcut. I'm using the following version: org.apache.pdfbox:pdfbox:2.0.27. Is there a way to fix this problem? Best, Daniela.
