Thanks Mark, In my case i need to give individual pdfs to users. They should only be able to read the pdf. Copying the PDF content or modifying the content should be disabled. But an admin should be able to merge pdfs of many users together into a single pdf file. With setencryption i am able to disable copy and content modificaiton, but merge asks for the master password. I agree that we can use a valid master password and admin can use that for merging, but is there any alternative ? -- View this message in context: http://itext-general.2136553.n4.nabble.com/How-can-i-set-Master-Password-to-No-for-a-PDF-tp3161813p3162835.html Sent from the iText - General mailing list archive at Nabble.com.
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