Repair PDF
Try to repair structurally damaged PDFs by rebuilding the document. Recovery is not guaranteed.
Examples
See what this tool can do.
Reopen a broken file
Try to rebuild a PDF that won't open due to structural errors.
Fix a truncated download
Attempt recovery of a PDF that was cut off mid-download.
Tips & tricks
Get the most out of it.
- 1Verify every page opens after repair.
- 2Keep the original in case the rebuild loses data.
- 3Not every file can be recovered — this is a best-effort attempt.
About Repair PDF
What this tool does
Repair PDF attempts to recover a structurally damaged PDF by rebuilding the document so it can open again.
How to use it
- Upload the damaged PDF.
- Run the repair attempt.
- Download the rebuilt file and check it opens correctly.
How it works
The tool re-parses and rewrites the PDF's structure with pdf-lib, which can fix broken cross-reference tables and similar issues.
Important considerations
- Recovery is not guaranteed — severely corrupted files may be unrecoverable.
- Always verify the repaired file before relying on it.
Privacy
Your PDF is processed entirely in your browser. The file is never uploaded to a server, which makes this safe for confidential contracts, statements and personal documents.
Related PDF tools
Frequently asked questions
No. It can repair common structural problems, but badly corrupted files may be beyond recovery.