Sign · · 6 min
How to sign a PDF without Adobe, printing, or an account
Draw a signature, stamp it on the page, and download a signed copy that works the same on Windows, Mac, and phone.
By PDF Boost AI Editorial Team
Open Sign PDF- 01
Open Sign PDF and drop the form.
- 02
Draw the signature with a mouse, trackpad, or finger.
- 03
Place it on the line, then download the stamped file.
Adobe wants an account. Preview wants a Mac. Markup wants an iPhone. A one-page NDA should not become a 20-minute thread about software.
This is a stamp, not a certificate
A drawn signature on a page is how most internal forms actually get signed. It is not a qualified electronic signature. For a lease or a stock grant, use a real signing platform. For the other 90% of “sign here,” it is enough.
Save the signed copy first
The failure mode on phones is losing the file inside a mail thread. Download, then share from Files or Explorer — not from the composer.
Same method on every device
A browser stamp is boring in the best way. Same control, same download, same privacy story on Windows, Mac, and phone.