Once you’re done creating a PDF document, your next steps should be to protect it from being copied and altered by making it non-editable or read-only. Always verify that you’re using a third-party security certificate from a trusted source, and if you create your own, note that deleting the file will lock any PDFs created with that certificate.

This method involves public key encryption to guarantee the identity of the document’s creator and make sure only certain recipients can access the file. Use third-party certificate security tools.

You can designate some areas of the PDF as unprotected, and define other restrictions in Document Properties when creating your file. For more secret files, you can set to require a password to view them, or limit a user’s ability to copy or print text from the document. This way you can control document restrictions by using a password. This is great for promotional materials, for example, if you want to distribute the content publicly, but still make sure no one can alter the original. This is the standard level of protection, which allows users to open and read a PDF, but prevents them from making any changes to it. There are a few ways for how to make a non editable PDF: That’s unless you add one or more levels of protection to prevent unauthorized users from copying, altering, or even just viewing the contents.

PDFs are convenient and portable, but because they are so commonly used, they can also compromise the safety of information they contain. PDF is the third most popular file-format on the web, and is more widely-used than JPEG, PNG, or GIF.

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