Sign PDF on Mac
Sign PDF on your Mac without installing Acrobat, downloading an app from the Mac App Store, or paying for extra software. ContinuePDF runs right in Safari or Chrome on macOS, so you can sign your PDF using the browser you already have open. It works the same on Apple Silicon (M-series) and Intel Macs, and needs no admin password to run.
Start Sign PDF NowHow to Sign PDF on Mac
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Open the tool in Safari or Chrome
On your Mac, go to continuepdf.com and open Sign PDF. No install and no admin rights needed.
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Drag your PDF from Finder
Drag files straight from a Finder window onto the page, or click to browse your Mac.
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Download to your Mac
Run the tool and signed PDF lands in your Downloads folder (or wherever Safari saves files).
What you can do with Sign PDF
Signing adds your actual signature to a PDF — drawn, typed, or uploaded as an image — and places it exactly where the document needs to be signed, so you can return it without printing.
Sign a contract fast
Add your signature to an agreement and send it back the same day, with no scanner or printer needed.
Handle forms remotely
Sign school, medical, or HR forms from home and email the signed copy straight back.
Initial every page
Place your initials on each page of a multi-page contract where that is required.
Reuse a saved signature
Sign recurring paperwork with a consistent, professional-looking signature every time.
Sign PDF on macOS the easy way
macOS Preview is great for viewing and light markup, but it can't do everything, and full Adobe Acrobat is a paid subscription that many Mac users would rather avoid installing. For a one-off or occasional sign job, downloading and licensing heavy software is overkill.
ContinuePDF fills that gap. It runs entirely in your Mac's browser, so there is nothing to install, nothing to update, and nothing that needs your admin password. Drag your PDF in from Finder, sign it, and the signed PDF downloads locally — all without your files ever leaving your Mac.
Why choose ContinuePDF
No install
Runs in Safari or Chrome — no App Store download, no admin password.
Finder drag-and-drop
Drop files straight from a Finder window onto the page.
Apple Silicon & Intel
Works identically on M-series and Intel Macs.
Private to your Mac
Files are processed on your Mac and never uploaded.
Pro tip
Draw your signature slowly on a trackpad or touchscreen for a cleaner line, or upload a photo of your ink signature on white paper for the most authentic look. Size it to match the signature line rather than dropping it in oversized.
Frequently asked questions
Is a signature added this way legally valid?
In many places an electronic signature is acceptable for everyday agreements, but requirements vary by country and document type. For high-stakes legal documents, check what your jurisdiction or the other party requires.
Can I place the signature exactly where I want it?
Yes. You position and resize the signature freely, so you can drop it precisely on the signature line and add a date next to it if needed.
How do I sign a PDF on a Mac?
Open Sign PDF in Safari or Chrome on your Mac, drag your PDF in from Finder (or click to browse), run the tool, and signed PDF downloads to your Downloads folder. No software installation is required.
Do I need Adobe Acrobat on my Mac?
No. ContinuePDF handles the sign job right in your browser, so you don't need Acrobat or any paid macOS app. It also does more than Preview can, without any download.
Is ContinuePDF free to use?
Yes. ContinuePDF and all of its tools, including Sign PDF, are free with no signup required. Because documents are processed in your browser rather than on our servers, we can offer the full feature set at no cost.
Other ways to Sign PDF
Prefer a different device, browser, or setup? Sign PDF works the same everywhere.
Ready to Sign PDF?
Start using our free sign tool now — no signup required.
Open Sign PDF Tool