Repair PDF
Attempt to fix a corrupt or malformed PDF by parsing it leniently and re-saving it with a clean structure. Free, private, runs entirely in your browser.
Click to select a PDF file, or drag and drop
Your file never leaves your browserHow to Repair a Corrupt PDF
- Upload the PDF that won't open properly or shows errors in other viewers.
- Click Repair PDF — the file is parsed with a lenient reader that tolerates minor structural damage, then rebuilt from scratch with a clean, well-formed structure.
- Download the repaired file once the tool reports success.
Example
A PDF that was interrupted mid-download or edited by a buggy tool sometimes has a broken cross-reference table or malformed objects that make strict PDF readers refuse to open it. Running it through this tool parses whatever can be recovered and re-saves it with a fresh, standards-compliant structure that most viewers can open again.
Common Use Cases
- Fixing a PDF that shows a "file is damaged" or "failed to load" error in a browser or PDF reader.
- Recovering a file after an interrupted download, transfer, or disk error.
- Cleaning up a PDF produced by a buggy export tool before archiving or sharing it.
FAQ
- Can this fix any corrupted PDF? No. It recovers files with minor structural issues that a lenient parser can still make sense of — a broken cross-reference table, slightly malformed objects, and similar issues. If the core structure (like the page tree) is too badly damaged, the parser itself will fail and the tool will tell you it couldn't recover the file.
- Will this fix visual corruption, like garbled text or missing images? No — this tool repairs the PDF's underlying object structure, not rendering issues caused by missing fonts or damaged image streams inside an otherwise valid file.
- Does this remove password protection? Encryption is ignored during the repair pass so the structure can be read, but the tool doesn't handle password-protected PDFs specially — use Unlock PDF first if the file is encrypted.
- Is my file uploaded anywhere? No — everything happens entirely in your browser.