Does it compare images and layout?

The comparison focuses on the text layer, which catches the substantive changes in most documents.

Can I compare scanned PDFs?

Run OCR on both files first so they each have a text layer.

Does the compare two pdfs tool work for online form and portal uploads?

Yes. It is built for portals that enforce strict file limits — exam boards, job applications, university and government forms. You control the output before you download it.

Will it work on a low-end phone or a slow mobile connection?

Yes. Files are processed inside your browser instead of being uploaded, so nothing depends on upload speed and it works on budget phones on 3G or 4G.

Is there any charge, watermark or sign-up?

No. Every tool is completely free, unlimited, watermark-free and requires no account, email or payment.

Compare two PDFs

Line-by-line text diff between an original and a revised document.

Original document

Drag it anywhere in this area — everything stays on your device.

Revised document

Drag it anywhere in this area — everything stays on your device.

Guide, features and FAQ for compare two PDFs(tap to expand)

How to compare two PDFs in your browser

Spot exactly what changed between two versions of a contract, policy or draft. Text from both files is aligned and every insertion and deletion is colour-coded side by side.

1Upload the original PDF.
2Upload the revised PDF.
3Review the highlighted differences.
4Act on the changes in the editor if needed.

What this compare two PDFs tool does

Word-level differences

Additions and removals are highlighted inline, not just flagged per page.

Side-by-side layout

Both documents scroll together so context is never lost.

Version control for documents

Ideal for reviewing contract redlines and revised reports.

Why people use it

Free with no account, no email and no watermark
Runs in the browser — documents stay on your device
Works on Windows, macOS, Linux, Android and iOS
Also great for PDF diff online and compare PDF documents free

Frequently asked questions

Does it compare images and layout?: The comparison focuses on the text layer, which catches the substantive changes in most documents.
Can I compare scanned PDFs?: Run OCR on both files first so they each have a text layer.
Does the compare two pdfs tool work for online form and portal uploads?: Yes. It is built for portals that enforce strict file limits — exam boards, job applications, university and government forms. You control the output before you download it.
Will it work on a low-end phone or a slow mobile connection?: Yes. Files are processed inside your browser instead of being uploaded, so nothing depends on upload speed and it works on budget phones on 3G or 4G.
Is there any charge, watermark or sign-up?: No. Every tool is completely free, unlimited, watermark-free and requires no account, email or payment.

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