Repair PDF Online Free
Fix corrupted or damaged PDF files that won't open. Our repair engine reconstructs the PDF structure and recovers text, images, and pages from broken documents.
Drop your damaged PDF here
or click to browse — corrupted .PDF files accepted
PDF · Max 50 MB free · Up to 200 MB with Pro
document.pdf
Calculating…
Our repair engine will attempt to recover all content from your PDF. Recovery success depends on the extent of corruption — severely damaged files may only allow partial recovery.
Recovery Options
No account required · Files processed securely and deleted in 24h
Repairing your PDF…
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PDF Repaired!
Structure reconstructed and content recovered successfully.
Download document-repaired.pdfUnlock Pro — deep recovery mode, batch repair, files up to 200 MB
Password-protected recovery · XMP repair · Form data recovery
How It Works
Repair a damaged PDF in three simple steps
Upload Damaged PDF
Upload the corrupted PDF — even files that won't open in Acrobat or Preview are accepted. Our engine handles partially readable files.
Diagnose & Repair
The repair engine scans for structural damage, rebuilds cross-reference tables, recovers fonts, images, and page content wherever possible.
Download Fixed PDF
Download a repaired PDF that opens correctly in any standard viewer. All recovered text, images, and pages are preserved in the output.
What Our Repair Engine Fixes
Handles the most common types of PDF corruption
Broken Cross-Reference Tables
The xref table maps object positions in the file. When it's corrupted, the PDF won't open. Our engine rebuilds it by scanning the raw byte stream.
Truncated Files
Files cut short during download, transfer, or save. We recover all content that was written before the truncation point.
Corrupted Image Streams
Damaged image data within the PDF is isolated and removed or reconstructed, allowing the rest of the content to be recovered.
Font Encoding Errors
Missing or corrupted font embeddings that cause garbled or invisible text are detected and corrected using standard font substitution.
Invalid Object Streams
Malformed or improperly compressed object streams (used in PDF 1.5+) are decompressed and validated to recover the embedded objects.
100% Private & Secure
Your damaged file is uploaded via TLS, processed in an isolated container, and deleted within 24 hours. We never read or retain your content.
Frequently Asked Questions
PDF corruption can happen for many reasons: incomplete download, network interruption during email transfer, storage drive errors, software crash during save, virus damage, or file system corruption. Even a single corrupted byte in the header or xref table can prevent the file from opening.
Not always. If the file is only partially written or has severe structural damage, only part of the content may be recoverable. The repair engine always tries to recover as much as possible, even from heavily damaged files.
Pro users can provide the document password to unlock and repair simultaneously. Free users should first unlock the PDF (if accessible) and then run the repair, or try the repair directly — partial recovery may still be possible without the password.