Repair PDF
To repair a PDF, choose the damaged file and click Repair. ClickZM rebuilds the cross-reference table and object structure; if that fails it re-renders every readable page into a fresh PDF, so you recover as much as possible.
- Free
- No signup
- Runs in your browser
How to use Repair PDF
- 1Choose your file with the upload box above, or drag and drop it onto the box.
- 2Adjust the options; the preview updates as you change them.
- 3Click the main button to process the file in your browser.
- 4Download the result. Your original file is never changed or uploaded.
Repair PDF: questions people ask
Can every broken PDF be fixed?
No. If the file was truncated during download, the missing part is gone. Repair recovers whatever pages are still readable.
Why use rebuild mode?
Rebuild mode draws each page as an image with PDF.js, which tolerates many errors that stop other programs, at the cost of selectable text.
Is my data uploaded when I use the Repair PDF?
No. The Repair PDF runs entirely in your web browser, so your files stay on your device and work even on a slow connection.
Does the Repair PDF work on iPhone, Android and Mac?
Yes. The Repair PDF runs in any modern browser (Safari, Chrome, Edge or Firefox) on iPhone, iPad, Android phones, Mac, Windows and Chromebook. There is no app to install.
Is the Repair PDF free?
Yes. The Repair PDF is free with no signup, no watermark and no daily limit.