Compare Paper or Thesis Drafts

See what changed between two versions of an academic document.

Nid oes angen mewngofnodiMae ffeiliau'n aros yn breifat

Original (A)

Gollwng ffeiliau yma, neu cliciwch i bori

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Pori ffeiliau

Changed (B)

Gollwng ffeiliau yma, neu cliciwch i bori

PDF dim cyfyngiad maint ffeil

Pori ffeiliau

Nid yw eich ffeiliau byth yn gadael eich dyfais. Mae'r holl brosesu yn digwydd yn lleol yn eich porwr.

Drop two PDFs to compare them page by page — side by side, as an onion-skin overlay, or with changed areas highlighted. Both files stay in your browser.

academic tips

🎓

Compare a draft against your supervisor's returned version to find every edit.

🔴

The difference view highlights changed regions so you can focus your re-read.

📄

Works across long documents — page through to review each section.

🔒

Unpublished work stays private on your device.

Sut Mae'n Gweithio

Dewiswch Ffeil

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lawrlwythwch

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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✓Dim dyfrnodau ar unrhyw allbwn

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📜

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Spot exactly what changed between two drafts of an

✏️

Review Document Revisions

Check what an editor or collaborator changed in a

🧾

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Find changed figures between two versions of a fin

🎨

Compare Design Proofs

Verify changes between two versions of a printable

Cwestiynau Cyffredin

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