Drop corrupted PDF here
Repairing...
Files processed locally — never uploaded
Also try: AI Humanizer · Summarizer · Rewriter 3 free uses/day
How It Works
1
Upload PDF
Drop a corrupted or problematic PDF.
2
Auto-repair
Structural issues are detected and fixed.
3
Download
Get the repaired PDF.
FAQ
How does PDF repair work?
The tool loads your PDF with pdf-lib.js error recovery mode, fixes common structural issues, and saves a clean copy.
What issues can it fix?
Corrupted cross-reference tables, missing end-of-file markers, damaged page trees, and minor structural errors.
Is my PDF uploaded?
No. All processing in your browser.
What if the PDF is too damaged?
Severely corrupted files may not be recoverable. The tool attempts best-effort repair.
Does it preserve content?
Yes. The repair process preserves all recoverable content — text, images, and metadata.
Does it work on mobile?
Yes.
Is there a file size limit?
No practical limit.
Can it fix password-protected PDFs?
You need the password first. Use our <a href="/ai/pdf/unlock">Unlock PDF</a> tool, then repair.
Does it fix rendering issues?
It fixes structural issues. Font rendering problems may persist if fonts are missing from the PDF.
How does this compare to iLovePDF repair?
Similar approach. Our tool runs locally — no upload. Both handle common corruption cases.
Can it fix scanned PDFs?
It fixes the PDF structure. Scan quality is not affected.
What format is output?
PDF — same as input.
Does it reduce file size?
Sometimes. Removing corrupted metadata can slightly reduce size.
Is it free?
Yes.
Can I pay with crypto?
PDF tools are free. See all <a href="/ai/pdf">PDF Tools</a>. AI writing tools accept crypto from $9.99/month.
Do more with your documents
Summarize, rewrite, or translate the text in your PDFs with AI.
Repair corrupted PDF files using pdf-lib.js in your browser. Fixes cross-reference tables, page trees, and structural issues.
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