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It keeps working offline

Because nothing is uploaded, nothing needs a server. Once you’ve opened a tool, you can switch off Wi-Fi, board the plane or lose signal and keep fixing PDFs.

Updated September 18, 2026

Checking this browser…

This checks whether FixMyPDFs is saved for offline use on this device.

How to get ready

  1. Open FixMyPDFs once while online. The site saves its core pages and scripts for offline use in the background.
  2. Open the tools you’ll need, and run each one once with a small PDF. That downloads any engine the tool needs, such as the OCR model, so it is there later.
  3. Go offline. Pages you’ve visited open from your browser’s storage, and the tools run as usual.

Install it as an app

Installing is optional, but it puts FixMyPDFs in your dock, start menu or home screen and opens it in its own window.

  • Chrome and Edge on a computer: click the install icon at the right of the address bar, or open the menu and choose “Install FixMyPDFs”.
  • Android: open the Chrome menu and tap “Add to Home screen”, then “Install”.
  • iPhone and iPad: in Safari, tap Share, then “Add to Home Screen”.
  • Safari on a Mac: choose File → “Add to Dock”.

What works without a connection

  • Every tool page you have opened before, with its engines.
  • Batch jobs and large files: speed depends only on your device.
  • Saving results, including “Save all as ZIP”.

What doesn’t: pages you have never opened, and search results for them. Links to other websites need a connection too.

Questions

Do I need to install anything to use FixMyPDFs offline?

No. Once a page has loaded, your browser keeps what it needs. Installing it as an app is optional; it just gives you an icon and its own window.

Which tools need to be opened online first?

Any tool you haven’t used yet on this device. A few fetch an engine the first time: qpdf for passwords and repairs, the OCR engine for scans, and fonts for PDFs we create. Run each once while online and they are kept.

How much space does it take?

The pages themselves are small. The largest piece is the OCR engine and its English model at about 11 MB, stored only if you use OCR. You can clear it at any time from your browser’s site settings.