Repair PDF

Bring back a PDF that won't open or stopped downloading halfway. Wispdf rebuilds it in your browser first, and only offers our servers if that isn't enough.

On your device firstFree

or drop it here

Accepts PDF

Uploads from this page: 0On your device first. What this means

Repair PDF at a glance

Repair PDF is a free tool that rebuilds a damaged or partly downloaded PDF so it opens again. It first rebuilds the file in your browser, with nothing uploaded. If that is not enough, it asks before trying a deeper repair on our servers, which counts toward the free daily allowance for server tasks.

Limits · Files up to 1 GB each · Any number of files at a time · Free and unlimited, no account needed

Last updated October 19, 2026

How to use Repair PDF

Add the broken PDF
Choose the file or drop it on the page, even if other apps refuse to open it.
Repair it
Wispdf rebuilds the file on your device first. If it needs more, we ask before using our servers.
Save and check
Download the repaired copy and open it to check the pages you need.

What Repair PDF does

Repairing a PDF means rebuilding a file that is damaged or only partly downloaded, so it opens again. Wispdf first tries to rebuild the file inside your browser, with nothing uploaded. If that is not enough, it offers a deeper repair on our servers. It asks before sending anything, and the deeper repair counts toward your free daily allowance.

People use it to

Rescue a thesis draft that broke when a laptop died in the middle of saving
Fix a boarding pass PDF that half downloaded on patchy hotel Wi-Fi
Open a supplier invoice that shows an error in every PDF app you try

What's included

Browser repair first

The first repair runs on your device, free and unlimited, with nothing uploaded.

Deeper repair option

If the quick fix isn't enough, we offer a deeper repair on our servers. It only runs if you say yes.

Half downloads

Rebuilds files that stopped partway through downloading, so the part that arrived can open again.

Daily allowance

Deeper repairs count toward the free daily allowance: 2 tasks a day without an account, 3 with a free account. Unlimited with Pro or a 7-Day Pass.

Where your file goes

Repair PDF runs on your device first, so your file stays in your browser. If you choose the deeper repair, your file goes to our servers, encrypted on the way, deleted within an hour and never looked at.

On your device firstFree and unlimited, no account needed.

How privacy works at Wispdf

Questions about Repair PDF

Is Repair PDF free?

Yes. The first repair in Repair PDF runs in your browser and is free and unlimited, with no account. If that is not enough, the deeper repair on our servers counts toward the free daily allowance: 2 tasks a day without an account, or 3 with a free account. Unlimited with Pro or a 7-Day Pass.

Is my PDF uploaded when I repair it?

Not at first. Repair PDF tries to rebuild your file inside your browser, so it stays on your device. If that doesn't work, we offer a deeper repair on our servers and ask before sending anything. If you agree, the file is encrypted on the way, deleted within an hour, and nobody looks at it.

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

Open Repair PDF and add the file, even if other apps show an error. Wispdf rebuilds it in your browser. Download the result and open it. If pages are still missing or broken, run the deeper repair on our servers when Wispdf offers it. If the file came from a link, downloading it again is worth a try too.

Can Repair PDF recover everything?

Not always. Repair PDF rebuilds the parts of the file that tell apps how to read it. It can't recreate content that never made it into the file, such as pages lost when a download stopped early. In that case you get back what arrived, so ask the sender for a fresh copy.

Can I repair a PDF on my phone?

Yes. Repair PDF works in any modern browser on iPhone, iPad, Android, Windows, Mac, Linux and Chromebook, with no app to install. It's useful when an attachment won't open on your phone. Very large files are easier on a computer, since the browser repair uses your device's memory.

Why do PDFs get damaged in the first place?

Common causes are a download that stopped partway, an app or computer that shut down while saving, or a file that got mangled while being copied between devices. Repair PDF is made for damaged and half-downloaded files like these. To avoid it next time, let downloads finish fully and keep a backup of important files.