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 Repair PDF
- 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 Choose PurePDF for Repair PDF
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 for Repair PDF
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 for Repair PDF
- 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.
Frequently Asked Questions About Repair PDF
Will my PDF file be uploaded to a server?
No — nothing is uploaded. This tool runs entirely in your browser via WebAssembly/JavaScript; your file never leaves your device.
Is there a file-size limit, a usage cap, or a hidden fee?
It's free and unlimited, with no watermark and no forced file-size cap — the only real limit is your own device's memory for very large files.
Do I need to create an account or sign up?
No — no account, email, or sign-up is required for any tool. Just start using it.
Can I use this on my phone (iPhone or Android)?
Yes — it works in any modern mobile browser, no app install needed.
Can this tool recover content that is completely missing?
No. This fixes structural and format problems, not missing content — data that is truly gone cannot be recovered.
Can all corrupted PDFs be repaired?
If a PDF is severely corrupted, structural repair may not be able to recover it.