Repair PDF
Fix PDFs that will not open by rebuilding the internal structure and recovering the readable pages. Works on truncated and damaged files.
Upload PDF Files
About This Tool
A PDF that will not open is usually not destroyed. Most often the cross-reference table - the index that tells a viewer where each object lives - is damaged or missing, while the page content is sitting there intact. Transfers that failed halfway, unreliable storage and buggy software that wrote the file badly all produce this.
Repair works by scanning the file for the objects it can find and rebuilding the index from scratch, rather than trusting the broken one. Pages that are still readable are recovered; anything genuinely absent cannot be invented.
How much comes back depends on the damage. A bad index with intact content usually recovers fully. A file truncated at 60 percent gives you roughly the first 60 percent of the pages. Either way it is worth trying before you conclude the document is gone.
How to Use
Add the damaged files
Drop in up to 10 PDFs, including ones that refuse to open elsewhere.
Run the repair
The file is scanned for recoverable objects and the structure is rebuilt.
Check what was recovered
The report shows how many pages came back and what could not be read.
Download the repaired file
Save the rebuilt PDF and verify the pages you needed are present.
Use Cases
A file that will not open
The viewer reports the file is damaged, but the content is intact behind a broken index.
An interrupted download or transfer
Recover whatever portion of the document did arrive.
Recovering from failing storage
Salvage readable pages from a file rescued off a failing drive.
Frequently Asked Questions
Can every damaged PDF be repaired?
No. Structural damage with intact content usually recovers fully. Content that was never written or has been overwritten cannot be reconstructed.
Will I lose pages?
Only the ones that are genuinely unreadable. The report tells you exactly what was recovered.
What actually causes this?
A damaged or missing cross-reference table, most often from an interrupted transfer, storage faults, or software that wrote the file incorrectly.
Should I keep the broken original?
Yes, until you have confirmed the repaired file contains everything you need.