PDF Repair
Fix corrupted or damaged PDF files. Repair structure errors and recover unreadable documents.
Drop PDF file here or click to browse
Upload a corrupted or damaged PDF file to repair
Maximum 10MB per file
Repair Mode
PDF repaired successfully! Download should start automatically.
How to Repair a Corrupted PDF Online
Fix damaged PDFs in seconds
Upload PDF
Drag and drop your corrupted or damaged PDF file.
Choose Mode
Select basic repair (recommended) or aggressive for severe damage.
Repair
Click "Repair PDF" to fix structure errors and recover content.
Download
Your repaired PDF downloads automatically!
Common PDF Repair Scenarios
When you need to fix corrupted PDFs
Email Attachments
Fix PDFs that were corrupted during email transmission or failed to download completely from email.
Quick recoveryStorage Recovery
Repair PDFs from damaged hard drives, corrupted USB drives, or failed cloud storage syncs.
Data recoveryStructure Errors
Fix "cannot open" errors, encoding issues, broken references, or PDFs that crash viewers.
Critical fixesWhy Use Our Free PDF Repair?
The fastest, safest way to repair corrupted PDFs online
100% Free Forever
No sign-up, no watermarks, unlimited use. Completely free.
Bank-Level Security
Files encrypted during upload and deleted immediately after processing.
Lightning Fast
Process PDFs in seconds. No upload limits, no waiting in queues.
Original Quality
PDFs processed without compression. Preserve formatting and quality.
No Annoying Ads
Clean, distraction-free interface. Just your PDFs and nothing else.
Frequently Asked Questions
Everything you need to know about PDF repair
Is PDF repair free to use?
Yes! Our PDF repair tool is 100% free with no limits on the number of files you can repair. No watermarks, no sign-up required.
Can all corrupted PDFs be repaired?
Most corrupted PDFs can be repaired, especially those with structure errors, broken references, or encoding issues. However, severely damaged files with missing data may not be fully recoverable. Try aggressive repair mode for badly damaged files.
What's the difference between basic and aggressive repair?
Basic repair fixes common issues like broken references and structure errors. Aggressive repair uses advanced techniques including linearization and stream filtering for severely damaged PDFs that won't open at all.
Will I lose content during repair?
No. Our repair tool preserves all recoverable content, text, images, and formatting. It only fixes structural issues and encoding errors. If data was already missing from the corruption, it cannot be recovered.
Is my PDF safe during repair?
Absolutely. Files are processed securely and automatically deleted immediately after repair. We never store, log, or access your document content. Everything happens in real-time.
What causes PDF corruption?
Common causes include incomplete downloads, email transmission errors, storage device failures, software crashes during PDF creation, and improper file transfers between systems.
How long does repair take?
Most PDFs are repaired in seconds. Basic repair is very fast. Aggressive repair with linearization may take slightly longer for large files but still completes within seconds.
What's the maximum file size for repair?
You can repair PDF files up to 10MB in size. This covers most documents, even those with multiple pages and embedded images.
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