Logo PDF Ruler
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Zoom:
A4 (auto)

Measure PDFs instantly.

Runs entirely in your browser. Your PDF never leaves your device.

· GitHub
- Load a PDF to start

Privacy & Security

Verify it: Open Developer Tools → Network tab. You will see 0 requests when you load a PDF.

PDF Ruler — Measure distance in a PDF locally in your browser

Free online PDF measurement tool. No uploads, no accounts.
Works offline and runs entirely on your device.

✔ Local-only ✔ No uploads ✔ Open source ✔ Works offline ✔ A4 automatic scale

Guides & Tutorials

Step-by-step instructions for specific measurement tasks.

FAQ

Is it free?

Yes, 100% free and open source.

Does it work offline?

Yes. Once loaded, no internet is needed.

Are files uploaded?

No. Everything stays in your browser.

What units?

Centimeters (cm) by default.