Repair PDF
Attempt to fix a corrupted or malformed PDF file.
- 100% Private
- No Limits
- Works Offline
or drag and drop here
Fix a PDF with a broken cross-reference table or malformed structure by reading and rewriting it with qpdf — a well-established repair technique, running locally in your browser.
How to use this tool
- 1
Upload your PDF
Click the upload area or drag in the file that won't open properly.
- 2
Repair and download
Click repair — your fixed PDF downloads immediately, no options needed.
Why use this tool
Nothing leaves your device
Repair runs locally via qpdf compiled to WebAssembly — your document is never uploaded.
Real repair logic
Uses qpdf's own structural rebuild, not a guess-and-hope heuristic.
Common use cases
Fix a corrupted download
Recover a PDF that got partially corrupted during download or transfer.
Recover an old file
Fix structural issues in a PDF that was generated by an older or buggy tool.
Pro tips
- This fixes structural/format problems, not missing content — data that's truly gone can't be recovered.
- If a PDF is severely corrupted, repair may not be able to recover it.