Free PDF Repair Tool
Repair a broken PDF online free
Fix a PDF that won't open, shows blank pages, or throws an error in some viewers. Use the tool below to rebuild the file and download a clean copy.
Browser-based PDF repair
Choose a PDF that won't open properly. This rebuilds the file's internal structure and saves a clean copy.
Your files are handled safely
✔ Processing happens in your browser
✔ Your file is never uploaded to a server
✔ Your files are not stored or saved anywhere
✔ No account or sign-up required
Why Use It
Common reasons people repair PDFs
Files that won't open
Recover PDFs that show an error or blank page in some viewers due to a damaged internal structure.
Files from interrupted downloads
Fix documents that became partially corrupted during a transfer or an interrupted save.
Old or inconsistently edited PDFs
Rebuild files that have accumulated structural issues after being edited by multiple tools over time.
How It Works
Simple 3-step workflow
1. Choose your PDF
Choose the PDF file that won't open correctly.
2. Run the repair
The tool rebuilds the file's internal structure from what it can read.
3. Download the repaired PDF
Save the rebuilt file and confirm the content looks correct.
Honest Limits
What this can and can't fix
This tool re-reads a PDF as leniently as possible and rebuilds a fresh copy of its internal structure, which resolves many common causes of files that won't open. It cannot restore page content that is genuinely missing or physically corrupted.
FAQ
Repair PDF questions
What kind of PDF problems can this fix?
It can fix structural issues like broken cross-reference tables and inconsistent trailers, which are common causes of PDFs that won't open in some viewers.
Can it recover missing or corrupted page content?
No. If the actual page content is missing or badly corrupted, repairing the file's structure will not bring that content back.
Why did the repair fail?
Some files are too damaged, incomplete, or are not valid PDFs at all, and cannot be automatically recovered.
Is my file uploaded to a server?
No. Repair runs entirely in your browser. Your PDF is never uploaded to a server, and nothing is stored.