Repair PDF
Fix corrupted or damaged PDF files — recover readable pages and download a clean, valid document.
Repair your PDF
PDF files only · up to 100 MB
Repair corrupted or damaged PDF files online for free with PDFCrush. Recover unreadable documents and fix broken PDF structure. All processing happens locally in your browser — nothing is uploaded to any server.
How to Repair a Corrupted PDF
Open the Repair PDF tool in your browser. No installation or sign-up required.
Upload your corrupted or damaged PDF file by clicking the upload area or dragging and dropping.
The tool automatically attempts to recover all readable content using multiple repair strategies.
Download your repaired PDF — a clean, structurally valid document ready for any PDF reader.
Why choose PDFCrush for how to repair a corrupted pdf?
Recovers PDFs with broken cross-reference tables and corrupted metadata
Bypasses encryption and copies all recoverable pages into a fresh document
Rebuilds into a clean PDF without carrying over structural errors
No watermarks or file size restrictions
Works on PDFs that won't open in standard readers
Private and secure — zero server uploads
Common use cases
Recover a PDF that won't open in Adobe Acrobat
Fix a corrupted PDF downloaded from the internet
Repair a broken PDF attachment from an email
Recover a partially saved or truncated PDF file
Fix a PDF with missing fonts or broken cross-references
Restore a damaged scanned document PDF
Your privacy is protected
PDFCrush processes everything directly in your browser using pdf-lib. Your files are never uploaded, stored, or transmitted. No third-party services have access to your documents. Your privacy is guaranteed by design.
Frequently asked questions
What kinds of PDF corruption can be fixed?
Our tool can recover PDFs with broken cross-reference tables, missing or corrupted metadata, encryption issues, and other structural problems. The tool tries multiple strategies including encryption bypass and page-by-page recovery to salvage as much content as possible.
Will my original PDF be modified?
No. Your original file is never modified. The tool reads from the corrupted file and creates a brand new, repaired PDF — your original remains untouched.
Can all corrupted PDFs be repaired?
Most corrupted PDFs with structural damage can be recovered. However, if the file is severely truncated or the content data itself is overwritten, some or all content may not be recoverable. The tool will recover everything that is still readable.
Is it safe to repair PDFs online?
Absolutely. PDFCrush runs entirely in your browser using pdf-lib. Your files are never uploaded to any server. All processing happens locally on your device.
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