Protect PDF

Encrypts the document with AES-256. Because everything runs in your browser, the password itself never leaves your machine — something no upload site can claim. Don't lose it: there is no recovery, which is the point.

This tool runs entirely in your browser — nothing you type or open here is ever uploaded. You can disconnect from the internet after the page loads and it still works.

Drop files here or click to choose

One PDF file

up to 300 MB

📕

Need more than this page can do?

The PDF Bag of Tools desktop app compresses, redacts with verified removal, OCRs scans, repairs damaged files, converts to PDF/A and handles 500-page documents — all offline, on your machine, with the same promise: nothing ever leaves it. See everything it does →

More pdf tools

🔓 Unlock PDF

Remove a password you know — decryption, never cracking.

🩹 Repair PDF

Rebuild a damaged file's structure from what survives.

📤 Extract pages

Pull chosen pages into a new PDF.

🗑️ Remove pages

Delete chosen pages; everything else stays in order.

🖼️ Images to PDF

Turn JPG and PNG photos into a PDF, one page per image.

🔢 Page numbers

Stamp numbers — “{page} of {total}”, Bates-style formats.

See all 80 tools →