Fix a PDF that will not open
Rebuild a stubborn file, without uploading it.
When a reader throws an error instead of opening your PDF, the file’s structure is usually the problem. This tool rebuilds it into something readers accept, all in your browser with nothing uploaded.
How to fix a PDF that will not open
- 1
Add your PDF
Drop in the file that will not open.
- 2
Rebuild
The file’s structure is repaired on your device.
- 3
Download and open
Save the rebuilt PDF and try again.
Why fix it on your device
Rebuilding the file in the browser keeps it on your machine, so a document you are trying to salvage is never uploaded.
Frequently asked questions
Why will not my PDF open?+
Often the file was truncated or its internal structure was damaged in transfer. Rebuilding can make it valid again.
Is my file uploaded?+
No. The repair runs in your browser and the file never leaves your device.
What if it still will not open?+
Some files are too damaged to recover; if you have another copy or the source, that may be the better route.
Is it free?+
Yes, with no account.