Repair a damaged PDF
Rebuild broken PDF files so they open again. The repair runs in your browser.
- Your files are never uploaded
- Processed on your device
- Works offline
- Free, no sign-up
Drop your PDF files here
PDF files · up to 10 files, 500 MB each
or paste with Ctrl+VLive preview
Settings
No settings needed. The tool rebuilds the file's structure.
Nothing is uploadedHow it works
Add the damaged PDF
A file that shows errors or does not open.
Repair
The structure of the file is rebuilt.
Download
Try the repaired copy.
What can be repaired
Many PDFs fail to open because their index (cross-reference table) is broken, for example after an interrupted download or email. This tool reads every part of the file without trusting that index, rebuilds it, and writes a clean copy.
If parts of the file are missing, those parts cannot be brought back, but the rest is often saved.
Private
Your file is processed inside your browser with pdf-lib and qpdf, open-source PDF libraries. It is never uploaded, and nothing is saved after you close the page.
Questions
Are my files uploaded?
No. The tool runs inside your browser, so your files are opened and changed on your own device. They are never sent to us or to anyone else.
Can every PDF be repaired?
No. If the file is mostly missing or is not really a PDF, it cannot be fixed. Most structure errors can.
Is it free?
Yes. Free to use, with no sign-up, no watermark and no daily limits.
Related tools
More free tools that run on your device. No uploads