PDF Repair
Attempt to fix a corrupted or damaged PDF by re-parsing and rebuilding its structure.
Drop a damaged PDF here or click to upload
PDF files only
What Is PDF Repair?
PDF Repair attempts to fix corrupted or damaged PDF files by re-parsing the document structure and rebuilding it from scratch using pdf-lib. This can resolve issues caused by incomplete downloads, file transfer errors, or minor structural corruption.
How to Use
- Upload the damaged PDF by clicking the drop zone or dragging a file onto it.
- Click "Attempt Repair" to re-parse and rebuild the PDF structure.
- If successful, download the repaired PDF.
- If the file is too severely damaged, an error will be shown.
Features
- Re-parses and rebuilds the PDF cross-reference table
- Can recover from minor structural corruption
- Shows original vs repaired file size comparison
- 100% client-side — your PDF never leaves your device
- Uses pdf-lib's lenient parsing mode
FAQ
What kinds of damage can this fix?
It can fix minor structural issues like corrupted cross-reference tables or incomplete object streams. Severely damaged files with missing page data cannot be recovered.
Is my PDF uploaded to a server?
No. All processing is done entirely in your browser using pdf-lib. Your file never leaves your device.
What if repair fails?
If the file is too severely damaged, the tool will show an error. In that case, professional PDF recovery software may be needed.