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PDF Tools

Repair PDF

Attempt to recover a damaged or corrupted PDF by re-parsing it with lenient settings and re-saving a clean copy — entirely in your browser. The file is never uploaded. No account, no email.

Frequently asked questions

Does my file get uploaded?
No. The recovery runs entirely in your browser, on your own device. The damaged file never leaves your computer and never reaches a server.
What kinds of damage can it fix?
It fixes the most common PDF damage: bad cross-reference tables, incomplete saves, orphaned objects, and incremental-update bloat. It cannot reconstruct individual content streams (images or fonts) that have been overwritten or truncated.
What if the PDF is already valid?
Before repairing anything, the tool reads the file's cross-reference — the index a PDF reader uses to find each page. If that was already intact it tells you no damage was found, and still re-saves a clean, compacted copy that may be slightly smaller than the original. If it was damaged, it tells you that instead, and that the cross-reference was rebuilt.
What if the PDF is password-protected?
You need to remove the password first using the Unlock PDF tool, then try repairing it. The repair tool cannot open an encrypted file without the password.

Guide

Repair a corrupted PDF — recover files that won't open

Fix a PDF that won't open or displays errors. This guide explains what causes PDF corruption, what can be recovered, and when a file is unrecoverable.

Read the guide →
Repair PDF — recover a damaged PDF in your browser | Filum