# Repair a damaged PDF

> Repair a damaged or corrupted PDF online for free. Fixes files that won't open, show errors or blank pages. Runs in your browser — the file is never uploaded.

Tool: https://pdfnest.co.in/repair-pdf

Interrupted downloads, email attachments and old storage can damage a PDF's internal structure, so readers refuse to open it or show errors. Repair PDF rebuilds that structure and saves a clean copy that opens normally.

## Tips

- If the repaired file is still missing pages, the original download was probably incomplete — download it again from the source.
- After repairing, you can use every other tool on the fixed file.

## How to repair PDF

1. Click Select PDF file and choose the damaged PDF.
2. Click Repair PDF.
3. Download the repaired copy and open it.

## Features

- **Rebuilds the structure:** Reconstructs the cross-reference table and page tree that most damage affects.
- **Keeps your content:** Recovered pages keep their original text and images.
- **Clear result:** You'll see how many pages were recovered before downloading.
- **Private by design:** Repair runs in your browser. The file never leaves your device.

## FAQ

### How do I fix a PDF that won't open?

Select the PDF here and click Repair PDF. We rebuild its structure and give you a clean copy to download.

### Can every PDF be repaired?

Most structural damage can be fixed. If parts of the file are truly missing (for example an incomplete download), those pages can't be recovered.

### Why does my PDF say it's damaged?

Usually the download or transfer was interrupted, or the file was saved by faulty software. Repair PDF fixes most of these cases.