# Repair PDF

> Rebuild a damaged PDF's broken structure and recover its pages, entirely in your browser. 100% free and private.

Repair a corrupted or damaged PDF free, right in your browser. Rebuild broken file structure and recover pages. No upload, no signup, no watermarks - 100% private.

- **Canonical:** https://www.ailovekit.com/pdf/repair-pdf/
- **Category:** PDF Tools
- **Processing:** Runs entirely in your browser. Files are never uploaded to AiLoveKit servers.

## Repair a Corrupted PDF Without Sending It Anywhere

“Cannot open file”, “PDF is damaged”, “error loading document” - when a PDF breaks, most repair services ask you to upload the very file you're worried about. AiLoveKit's **PDF repair tool** works differently: it diagnoses and rebuilds the document **inside your browser**, so your file never leaves your device.

## Two Recovery Strategies

- **Structural rebuild** - when the page data is intact but the file's cross-reference table or object streams are broken (typical after interrupted downloads or disk errors), the tool rewrites the entire file structure. Text stays selectable, vectors stay crisp.

- **Visual rebuild** - when the structure is beyond saving but pages can still be rendered, the tool re-renders every page at high resolution and rebuilds the document from scratch. Content is recovered, though text in the rebuilt copy is not selectable.

Either way, corrupted metadata is stripped and you get a clean, standards-compliant file. Once it opens again, you can tidy it up with [Organize Pages](https://www.ailovekit.com/pdf/organize-pdf/), shrink it with [Compress PDF](https://www.ailovekit.com/pdf/compress-pdf/), or strip hidden data with [Remove Metadata](https://www.ailovekit.com/pdf/remove-metadata/).

## Frequently Asked Questions

**What kinds of PDF damage can this fix?**

Broken or missing cross-reference tables, truncated object streams, malformed metadata, and files that were interrupted during download or copy. If the page data is still present, the tool rebuilds the file around it.

**Is my damaged PDF uploaded to a server?**

No. Repair runs entirely inside your browser - which matters, because files needing repair are often the sensitive ones. Watch the Network tab in DevTools: zero requests are made while repairing.

**Will my text stay selectable after repair?**

Whenever possible, yes. The tool first attempts a structural rebuild that keeps text, vectors, and images intact. Only if the structure is beyond saving does it fall back to re-rendering pages as high-quality images.

**The tool says the file cannot be repaired. Why?**

The file may be empty, truncated below the page data, or not a real PDF. If it came from email or a download, try re-downloading the original - incomplete transfers are the most common cause of unrecoverable files.

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Source: https://www.ailovekit.com/pdf/repair-pdf/
Part of AiLoveKit: https://www.ailovekit.com/
Machine-readable index: https://www.ailovekit.com/llms.txt