Sign PDF in Safari
Sign PDF directly in Safari with ContinuePDF — no extension and no separate app, on both Mac and iPhone/iPad. The tool is built to Safari's standards and respects its privacy-first design, processing your PDF on your device rather than in the cloud. It fits naturally into Apple's ecosystem, pulling files from Finder on a Mac or the Files app on iOS.
Start Sign PDF NowHow to Sign PDF in Safari
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Open the tool in Safari
Open Sign PDF in Safari on your Mac, iPhone, or iPad. No extension, no download.
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Add your PDF
On a Mac, drag from Finder; on iPhone/iPad, choose from the Files app or iCloud Drive.
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Download your result
Run the tool and Safari saves signed PDF to Downloads (Mac) or the Files app (iOS).
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 in Safari, the Apple way
Safari is engineered around privacy and efficiency, and a good PDF tool should match that. ContinuePDF does: it runs entirely within Safari using standard web technology, so your PDF stays on your Apple device and is never uploaded to a server — in keeping with the private-by-default philosophy Safari users expect.
It also behaves the way Safari users expect across devices. On a Mac you can drag your PDF in from Finder and the signed PDF lands in Downloads; on iPhone or iPad you pull files from the Files app or iCloud Drive and save the result straight back. No extension, no app, and nothing that leaves the Apple ecosystem.
Why choose ContinuePDF
No extension
Runs as a normal page in Safari — nothing to add.
Mac & iOS
Works in Safari on Mac, iPhone, and iPad.
Privacy-first
Matches Safari's private-by-default approach — files stay on-device.
Finder & Files
Integrates with Finder on Mac and the Files app on iOS.
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.
Does Sign PDF work in Safari?
Yes, fully — on Mac, iPhone, and iPad. Sign PDF runs as a standard web page in Safari with no extension needed. Add your PDF and download signed PDF right from the browser.
Is it private in Safari?
Yes. In line with Safari's privacy-first design, ContinuePDF processes your PDF on your device and never uploads it, so your documents stay within your control.
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.
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