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LatestPrivacy & Security
Drawing over text in a PDF often leaves the text underneath. Learn how to test for that, and how to remove sensitive information properly.
By David Valle
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Privacy & Security
Browser-based PDF tools do the work on your device. Here is what that means in practice, what still touches a server, and how to check the claim.
Privacy & Security
Most PDF tools cannot open a locked file. Here is how to tell what kind of protection you have and how to proceed when the file is yours.
Privacy & Security
PDFs often hold IDs, contracts, and financial details. Here is how to tell which tools keep files on your device and how to protect sensitive documents.