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Add your PDF(s)
Drop files or click to select. Everything stays on your device.
Encrypted PDFs require the password; without it, repair isn’t possible.
Repair Corrupted PDF Online
Drop PDFs here or click to browse
We fix structure, rebuild xref, and save a clean copy. Everything runs locally in your browser.
ModeAuto
How to repair a PDF online
Fix corrupted, unreadable, or broken PDFs in your browser - no uploads.
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Repair
We rebuild xref tables, normalize streams, and clean invalid objects to restore a valid PDF.
Aggressive mode also recompresses Flate data and regenerates object streams. - 3
Download
Save a clean, fixed PDF ready to view, share, or print.
Enable linearization for faster first-page load on the web.
Private by design
Attempt to rebuild damaged PDF structures and save a readable copy. Repair runs locally; severely corrupted files may not be recoverable.
Frequently asked questions
Repair runs locally in your browser using WebAssembly and Web Workers. Your PDF never leaves your device. The tool attempts to rebuild the cross-reference table, correct object offsets, rewrite damaged streams, remove minor syntax issues, and optionally linearize the file for faster web viewing.
We do not receive or store your PDFs. Processing happens on your device only. The page may load anonymous Google analytics, but files are never uploaded to servers.
Limits depend on your RAM and browser. Modern desktops handle tens to hundreds of MB. Close unused tabs for large scans. If a file fails, try the Light strategy first, then Aggressive.
Yes. No account and no paywall. The service is funded by ads and optional donations. All processing stays on your device.