Repair a Damaged PDF
Attempt to recover a PDF that won't open by rebuilding its internal structure, processed in your browser.
Drag a damaged PDF here, or choose a file
A PDF that won't open, or that some programs reject as corrupted.
You can also paste a file directly (Ctrl+V or ⌘V).
A real PDF with its index deliberately removed
This tool runs entirely in your browser. Your file is not uploaded to a server at any point.
What Usually Goes Wrong Inside a PDF
A PDF keeps an index at the end of the file - a table of exact byte positions telling a reader where each piece of content lives. An interrupted download, a bad copy, or a buggy tool that wrote the file can leave that index wrong or missing entirely, even though the actual content is still sitting intact inside the file. Most viewers refuse to open a file once that index looks broken, even though nothing about the real content is gone.
Recovers the Content, Rebuilds the Index
Filevolo scans the file directly for its actual content rather than trusting the broken index, then writes a brand new, correctly structured PDF around whatever it finds. This fixes structural damage - a PDF that's missing or has a corrupted index - not content that's genuinely gone, like a file truncated mid-page or overwritten with different data.
Frequently asked questions
Related tools
Guides for this task
- How to Fix a Corrupted PDF That Won't Open
Why a PDF with perfectly intact content can still refuse to open, and when recovery is actually possible.