PDF Permissions Explained: Print, Copy, and Edit Restrictions
PDF permissions let you control what recipients can do with a document — print, copy, edit, or fill forms. Here's how they work, their limits, and how to set them free.
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PDF Permissions
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PDF Encryption Explained: 128-bit vs. 256-bit AES
Not all PDF passwords offer the same protection. Here's what 128-bit and 256-bit AES encryption actually mean, which one you need, and why it matters for sensitive documents.
Read ArticleHow to Redact a PDF: Permanently Black Out Sensitive Text
Redacting a PDF permanently removes sensitive text and images — not just covers them. Here's how to redact correctly, why cropping and black boxes fail, and the best free and paid tools.
Read ArticleHow to Remove a Password from a PDF You Own
If you know the password, removing it from a PDF takes seconds. Here's how to unlock a PDF you own — free, in your browser, with no software to install.
Read ArticleHow to Password Protect a PDF for Free
Adding a password to a PDF takes seconds and keeps sensitive documents secure. Here's the difference between open passwords and permissions restrictions, how 256-bit AES encryption works, and how to protect any PDF for free.
Read Article21 free PDF tools — right in your browser.
Merge, split, compress, convert, protect, and more — no account required.