Repair PDF
Recover unreadable or partially corrupted PDF files by rebuilding their internal structure. Our repair tool re-parses the document, reconstructs cross-reference tables, and produces a clean, valid PDF you can open anywhere.
100% Privacy
Files stay strictly on your device. Zero server uploads.
Instant Speed
Local browser WebAssembly & JS processing engine.
Free Forever
Unlimited usage with no hidden fees or watermarks.
How to Repair Corrupted PDFs
Upload PDF
Upload the corrupted or damaged PDF.
Repair
Click Repair to rebuild the PDF structure.
Verify
Check the repair summary report.
Download
Download your repaired PDF.
Frequently Asked Questions
Structure errors, broken cross-references, and truncated files. Severely corrupted or encrypted files may not be recoverable.
Related Tools
Compress PDF
Compress PDF files online for free without losing quality. Reduce PDF file size by up to 80% with our browser-based optimizer. No uploads, no registration.
Merge PDF
Merge multiple PDF files into one document for free. Drag to reorder files and download the combined PDF instantly. 100% browser-based, no uploads.
OCR PDF
Extract text from scanned PDF files using OCR for free. Convert image-based PDFs into searchable, selectable, and editable text. Browser-based.
PDF to PDF/A
Convert PDF files to PDF/A archival format online for free. Ensure long-term document preservation with embedded fonts and metadata. Browser-based.