PageHawk
PageHawk Compare

Compare two PDFs online, free.

Drop in two PDFs and see every insertion, deletion, and revision marked in place on the real pages, side by side. Nothing to sign up for, nothing to sign in to.

🔒 Compared right on your device. The comparison runs entirely in your browser, right on your device. Free tools that send your documents to a server cannot say that.
A Original
Drop the first PDF
or click to choose · PDF
B Revised
Drop the second PDF
or click to choose · PDF

Free, in your browser: up to 10 pages per document, one comparison a day. The full PageHawk app has no caps.

Redlined with PageHawk · in your browser · pagehawk.com

Need more than a quick redline?

The full PageHawk app compares whole folders in one pass, batch, auto-paired by filename, with no page or per-day caps. It works inside Microsoft Word through a task-pane add-in, and adds true redaction, e-signing, and Bates stamping. All on your Mac.

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Windows or web?

PageHawk is Mac-first today; the browser and Windows builds are next. Leave your email and we will tell you the day they ship.

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Just for launch news. No spam, no resale, unsubscribe anytime. Your documents are never involved.
Truly privateText is read and compared with your browser's own PDF engine, keeping your file out of reach of a subpoena or breach aimed at a server. It works the same way the PageHawk app does.
Marked in placeEvery change is highlighted right on the page where it happens: deletions on the original, insertions on the revised, with the two pages scrolling in lockstep. The actual document, not reflowed text.
Works anywhereAny modern browser, on any operating system, with nothing to install, no plugin, and nothing to sign in to. Bring two agreement versions, a before-and-after contract, or two drafts of a brief.

Comparing PDFs online? Where your files go is the difference.

The interface here is the one Draftable made popular: both documents side by side, changes marked in place. The difference is what happens to your files.

PageHawk · in your browser The redline is built by your browser's own PDF engine, right on your device, so there is nothing to upload, leak, or subpoena. Free, no signup. The quick tool does up to 10 pages a day; the full PageHawk app has no caps and works the same way.
Draftable · online Also free with no signup, and it handles larger jobs (up to 10 MB or 300 pages). To do that, your documents are uploaded to Draftable's servers to be compared. For private, offline work, Draftable points you to their paid desktop app.

Both are useful tools. When the documents are sensitive, the one that compares them on your own device is the safer default. See the full PageHawk app →