Repair a PDF that readers refuse to open, by rebuilding its internal structure from the pages that are still intact. Broken cross-references and damaged file tables are the most common cause of a dead PDF, and a rebuild fixes exactly those. It runs in your browser, and the damaged original is never altered.
Your files are processed in your browser, on your own device. Nothing is uploaded to a server.
A PDF usually dies in its plumbing, not its pages. The file keeps a map of where everything sits, and when that map is torn, by a bad download, a dying USB stick, an interrupted save, readers give up even though the pages themselves are fine. This tool reads the pages directly, rebuilds the map from scratch, and writes a clean file. If the pages themselves are damaged, no repair anywhere can invent them back, and this page will tell you that plainly too.
A rebuild fixes broken maps: wrong or missing cross-reference tables, damaged trailers, and files truncated in ways that leave the pages readable. Those faults cause the classic symptoms: “the file is damaged and could not be repaired” from one reader, a document that opens on one device and not another, a file that shows its first page then errors. What a rebuild cannot fix is damage inside the page data itself: a scan half overwritten, text streams corrupted byte by byte. There the honest routes are the sender’s original, a backup copy, or opening the file in any reader that tolerates it and printing it to a fresh PDF there. One more limit worth knowing: this repair works on structure, so features rebuilt along the way, like some bookmarks or form logic, may come back simpler than they were. The words and pictures are what the repair protects first.
Downloads cut off mid-file are the biggest cause, followed by files copied from failing drives and phones. Email systems that mangle attachments, messaging apps that rewrap files, and editors closed mid-save all leave the same torn maps behind. When the repaired copy works, save it under a new name and let it replace the damaged one in your records, so the broken copy stops circulating.
A surprising share of “damaged” PDFs are innocent. Door one: download the file again, fully, and open the fresh copy. Browsers and mail apps hand you truncated files without saying so, and the second download is often whole. Door two: open the file in a different reader, ideally your browser itself, whose PDF engine shrugs at faults that stop a stricter app. If either door opens, you never needed a repair, just a better copy or a kinder reader. When both fail, bring the best copy you have here. Repairing the least-damaged version gives the rebuild the most intact pages to work from. And after a successful repair, stop circulating the broken file. Replaced copies have a way of surviving in inboxes long after the fix, confusing everyone who opens the wrong attachment in six months.
Yes. Repair is free, with no limits sold back to you later and no watermark on the result. ToolPeko earns from ads on the site, not from your documents.
No. The repair runs inside your browser, on your own device, which matters most for a file you already cannot open anywhere else. Nothing travels to us.
No. A locked file cannot be read, so it cannot be rebuilt. Remove the password in the app that set it, then repair the unlocked copy if it still misbehaves.
It means the damage is inside the page content itself, not just the file map. No repair tool can invent lost page data. Go back to the source: the sender, a backup, or any reader that opens it long enough to print it to a fresh PDF.
The pages, words and pictures are carried over as they are. Some extras, like complex bookmarks or form calculations, may return simpler. Check the pages after repair, especially forms, before you rely on the copy.
A few readers cache the old error or dislike any rebuilt file on principle. Save the repaired copy under a new name, close the reader fully, and open the new file fresh. If another reader opens it fine, the copy is good.
Same rules as this one: free, in your browser, with nothing uploaded.
Join many PDFs into one file, in the order you drop them.
Pull pages out, or break one PDF into smaller files.
Shrink a PDF so it fits email and upload limits.
Fix sideways pages and save them straight.
Keep only the pages you pick, saved as a new PDF.
Delete the pages a PDF does not need.
Drag pages into the right order before you save.
Trim wide margins or cut a page area down to size.