How to Repair a Corrupted PDF for Free
⏱ Takes less than 1 minute
PDF will not open or throws an error? PDFredo's free online PDF repair tool rebuilds the file structure to recover as much content as possible. No account, no watermarks, and your file is deleted from our EU servers after 30 minutes.
Upload the damaged PDF
Drag your file or click "Select File". Even PDFs that error out in other readers can usually be uploaded.
Start the repair
Click "Repair PDF". PDFredo scans the file on secure EU servers, rebuilds the cross-reference table, and recovers accessible pages.
Download the repaired PDF
Review the recovery report showing how many pages were recovered, then download the repaired file.
Pro Tips
- If the file was partially downloaded, download it again first. Incomplete files cannot be fully repaired.
- Our Inspector tool shows which parts of a PDF are broken before repair.
- Very corrupted files may only partially recover; keep expectations realistic for severely damaged scans.
Frequently Asked Questions
What kind of corruption can you fix?
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Broken cross-reference tables, truncated files, and invalid object streams are the most common issues we fix.
Will I get back 100% of the content?
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Usually yes, but heavily damaged files may lose individual pages or embedded objects. The report tells you exactly what was recovered.
Is there a size limit?
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Yes. 100 MB per file. Larger files must be split or compressed first.
Are my files private?
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Files are processed on EU servers (Germany) and deleted automatically after 30 minutes. We never share your documents.
Is the repair free?
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Yes. No registration, no subscription, no watermarks.
Can you repair password-protected PDFs?
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Only if you can open them. Unlock first with our Unlock PDF tool, then repair.
Does it work on mobile?
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Yes. Any modern browser on iOS and Android.