I want to know how to protect a PDF file so that we can not copy the contents, ie the Scriptures, so that one can not transfer writes word or any other application. I have some document to send via mail. The documents are important and I am finding no way to encrypt it. I can try to convert them on the image format, but that will make them more and more blurry. For retaining the quantity of the scanned file I have to stick with the pdf format. How to protect this files.
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