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Repair PDF
Rebuild the internal structure of a damaged or badly-made PDF.
Choose a fileLoading the tool…
When a PDF won’t open or shows errors, ModifyPDF rebuilds its cross-reference table and page tree. If that isn’t possible, it recovers every page that can still be read.
How to repair a PDF
- Choose the damaged PDF.
- Click “Repair PDF”.
- Download the repaired file.
Frequently asked questions
Can every PDF be repaired?
Not always. If the file is severely truncated, only the readable pages can be recovered.
Is it really free?
Yes. There is no sign-up, no daily limit and no watermark added to your files.
Are my files uploaded to a server?
No. ModifyPDF processes files with JavaScript inside your browser. Your documents never leave your device, and nothing is stored after you close the page.