Repair PDF - Fix Corrupted Files (No Upload)
Recover corrupted PDF files instantly in your browser
or Drag & drop files here
Supported formats: .pdf, application/pdf
Free PDF Repair Tool Online - Fix Corrupted PDF Files
Repair corrupted and damaged PDF files instantly with our free online PDF repair tool. Fix broken PDFs that won't open, recover incomplete downloads, and restore documents with structural corruption—all processed securely in your browser using advanced Ghostscript technology. No software installation required.
Successfully repair most corrupted PDFs with our WebAssembly-powered tool
How to Repair a Corrupted PDF
Fix broken and damaged PDF files in 4 simple steps
Upload your corrupted PDF
Drag and drop your damaged PDF file or click to browse. Our repair tool accepts files up to 100MB and can process up to 20 files in batch.
Select repair options
Choose optimization level: Preserve Quality (maintain original), Balanced (recommended), or Optimize Size. Enable web optimization if needed.
Click Repair PDFs
Our tool uses Ghostscript WebAssembly to rebuild the entire PDF structure, fixing xref tables, encodings, fonts, and other corruption issues.
Download your fixed PDF
Download your repaired PDF file. The tool will report any warnings if partial content recovery occurred.
Why Choose PDFyogi's PDF Repair Tool?
Professional PDF recovery without expensive software
100% Free PDF Repair
Repair corrupted PDFs completely free with no hidden costs, daily limits, or watermarks. Fix as many broken PDFs as you need without subscription fees.
Advanced Ghostscript Engine
Uses professional-grade Ghostscript technology to rebuild PDFs from scratch, fixing structural corruption that other tools can't handle.
Complete Privacy & Security
All PDF repair happens locally in your browser using WebAssembly. Your corrupted files are never uploaded to any server—perfect for sensitive documents.
Multiple Corruption Types Fixed
Repairs broken xref tables, invalid encodings, font problems, incomplete downloads, metadata corruption, and structural inconsistencies.
Batch Repair Support
Fix up to 20 corrupted PDF files simultaneously. Process multiple damaged documents in one operation and download as a ZIP.
Optimization Options
Choose to preserve original quality or optimize file size during repair. Optional web linearization for faster online viewing.
PDF Repair Use Cases
Common scenarios where our PDF repair tool saves the day
Incomplete Download Recovery
Fix PDFs that were interrupted during download, leaving them corrupted and unopenable.
Example: Recover a 50-page report that shows 'file is damaged' after a network interruption during download.
Email Attachment Repair
Repair PDF attachments corrupted during email transmission or by email server processing.
Example: Fix a contract PDF that won't open after being sent through multiple email forwards.
Storage Media Recovery
Recover PDFs from failing hard drives, corrupted USB drives, or damaged cloud sync files.
Example: Restore important tax documents recovered from a failing external hard drive.
Scanner Output Fixes
Repair malformed PDFs created by scanners or document management systems with buggy software.
Example: Fix batch-scanned documents that show errors in Adobe Reader but scanned without issues.
Software Crash Recovery
Recover PDFs that were being created or edited when software crashed unexpectedly.
Example: Salvage a presentation PDF that was corrupted when Adobe Acrobat crashed during save.
Archive Document Restoration
Repair old archived PDFs that have become corrupted over time or through multiple file transfers.
Example: Restore 10-year-old business records that no longer open in modern PDF readers.
How to Repair PDF on Any Device
Fix corrupted PDFs on your platform without software installation
Repair PDF on Windows
Fix corrupted PDF files on Windows 10/11 without installing repair software or Adobe Acrobat Pro.
- Open Chrome, Firefox, or Edge browser
- Navigate to PDFyogi PDF Repair tool
- Upload your corrupted PDF file
- Download the repaired document
Repair PDF on Mac
Recover damaged PDFs on macOS when Preview fails to open them. More powerful than built-in Mac tools.
- Open Safari, Chrome, or Firefox
- Visit PDFyogi PDF Repair
- Drop your broken PDF file
- Save the recovered document
Repair PDF on Linux
Fix corrupted PDFs on Ubuntu, Fedora, and other Linux distributions through any modern browser.
- Open Firefox or Chromium browser
- Go to PDFyogi online repair tool
- Upload damaged PDF document
- Download repaired file
Repair PDF on iPhone & iPad
Fix broken PDFs on iOS devices without downloading repair apps from the App Store.
- Open Safari on iPhone/iPad
- Navigate to PDFyogi PDF Repair
- Select corrupted PDF from Files
- Save repaired PDF
Repair PDF on Android
Recover damaged PDF files on Android phones and tablets. No app installation needed.
- Open Chrome on Android device
- Visit PDFyogi repair tool
- Upload broken PDF file
- Download fixed document
PDF Repair Tool Comparison
How PDFyogi compares to other PDF recovery solutions
| Feature | PDFyogi | Adobe Acrobat Pro | iLovePDF Repair | Stellar PDF Repair |
|---|---|---|---|---|
| Free to Use | ✓ Always Free | ✗ $239.88/year | ⚠ Limited Free | ✗ $49.99 |
| Online (No Install) | ✓ Browser-Based | ✗ Desktop Install | ✓ Online | ✗ Windows Only |
| Structural Repair | ✓ Full Rebuild | ✓ Professional | ✓ Basic | ✓ Advanced |
| Batch Processing | ✓ Up to 20 Files | ✓ Yes | ⚠ Premium | ✓ Yes |
| Privacy (Local) | ✓ 100% Local | ✓ Local App | ✗ Server Upload | ✓ Local App |
| xref Table Fix | ✓ Automatic | ✓ Advanced | ✓ Basic | ✓ Advanced |
| Font Recovery | ✓ Re-embedded | ✓ Full Support | ⚠ Limited | ✓ Full |
| File Size Options | ✓ 3 Options | ✓ Multiple | ✗ None | ⚠ Basic |
| No Watermarks | ✓ Never | ✓ None | ✓ Free Tier | ✓ None |
PDFyogi offers the best free PDF repair solution with professional Ghostscript technology, complete privacy through local processing, batch support, and multiple optimization options—features that typically require paid software.
Pro Tips for PDF Repair
Maximize your chances of successful PDF recovery
Try Different Optimization Levels
If 'Preserve Quality' fails, try 'Balanced' or 'Optimize Size'. Different settings may succeed on severely corrupted files where others fail.
Keep Original Files
Always keep a backup of the original corrupted file before repair. You may want to try different repair options or tools later.
Check Multiple PDF Readers
Before repairing, try opening in different PDF readers (Chrome, Firefox, Adobe, Foxit). Some readers can handle minor corruption that others can't.
Repair Large Files in Parts
For very large corrupted PDFs, consider using our Split PDF tool first (if it partially opens) to process sections separately.
Use Web Optimization for Sharing
Enable 'Optimize for web viewing' if you plan to share the repaired PDF online. This creates a linearized PDF that loads faster in browsers.
Review Repair Warnings
Check the repair report for any warnings about partial content recovery. Verify important pages are intact after repair.
Technical Specifications
Detailed specifications for our PDF repair tool
Frequently Asked Questions
Common questions about repairing corrupted PDF files
PDFs may fail to open due to incomplete downloads, file transfer corruption, storage media errors, software crashes during creation, or structural damage. Our repair tool can fix most of these issues by rebuilding the PDF structure.
Most corrupted PDFs can be successfully repaired if the core content data is intact. However, severely damaged files with missing data blocks may only be partially recoverable. Our tool will inform you if content was lost during repair.
Our tool uses Ghostscript to completely rebuild the PDF from scratch. It reads all valid content from the corrupted file and generates a new, properly structured PDF with correct xref tables, font embeddings, and stream encodings.
Yes! PDFyogi offers completely free PDF repair with no limits, watermarks, or registration. Unlike paid tools like Adobe Acrobat Pro ($240/year) or Stellar PDF Repair ($50), our tool is 100% free.
When Preview can't open a corrupted PDF, use our online repair tool in Safari or Chrome. Upload your broken PDF, click repair, and download the fixed file—no software installation needed on macOS.
With 'Preserve Quality' setting, original quality is maintained. If you choose 'Balanced' or 'Optimize Size', some compression may be applied. For important documents, always use 'Preserve Quality'.
Encrypted PDFs require the password for repair. If you have the password, use our Unlock PDF tool first to remove protection, then repair the file. We cannot repair PDFs without proper authorization.
Our repair tool processes the entire PDF. If specific pages are damaged, the tool will attempt to recover them. Check the repaired file to verify all pages were successfully restored.
Repair time depends on file size and corruption severity. Most files under 10MB are repaired in under 30 seconds. Larger or heavily corrupted files may take 1-2 minutes. Batch processing shows progress for each file.
No, absolutely not. All repair processing happens locally in your browser using WebAssembly technology. Your files never leave your device, ensuring complete privacy even for sensitive documents.
Troubleshooting
Solutions to common PDF repair issues