Repair a damaged PDF
A PDF that won't open, shows an error or has missing pages is often only damaged in its structure. Quikdo rebuilds it and recovers every page it can.
Nothing is uploaded. Your files stay private.
How to repair a PDF
Three steps, about ten seconds.
- 01
Add the damaged file
Drop it in the box, or tap to choose it.
- 02
Let it rebuild
Quikdo rebuilds the file's structure. If that fails, it rescues every page that can still be read.
- 03
Download
Save the repaired copy and check it opens.
Good to know
Most damage comes from interrupted downloads, email attachments that were cut short, or apps that crashed while saving. The pages are often still there; the index that points to them is broken.
Quikdo first rebuilds that index, which keeps text, links and quality as they were. If the file is too damaged, it falls back to saving each page that can still be drawn as an image.
A file that's empty or only a few kilobytes usually has nothing left to recover. Try downloading it again or ask the sender for a new copy.
Frequently asked questions
How do I fix a corrupted PDF?
Drop it in. The broken index that points to the pages is rebuilt, and if that isn't possible, every page that can still be drawn is saved instead.
Can every PDF be repaired?
No. If the data is gone (for example a 0 KB file), there's nothing to recover.
Why is my repaired file made of images?
Its structure was too damaged to rebuild, so the readable pages were saved as images. Use OCR PDF to make the text searchable again.
Does it remove passwords?
No. To remove a password you know, use Unlock PDF.
Is my PDF uploaded?
No. The repair runs in your browser, so the damaged file stays on your device.