Guide
How to sign a PDF on Mac
MarkdownThe built-in way: Preview
Preview can sign any PDF without extra software.
- Open the PDF in Preview.
- Click the Markup button (the pen tip icon) to show the Markup toolbar.
- Click the Sign button, then create a signature with your trackpad, your Mac's camera or an iPhone or iPad.
- Click the signature to place it, then drag it into position and resize it.
- Choose File > Save.
Preview keeps your signatures so you can reuse them in other documents.
The Toolbox way: Sign PDF
Sign PDF lets you draw your signature or type it in a handwriting style, then place it anywhere on a document. Saved signatures are kept for next time. You do not need an account, and the PDF stays on your Mac.
- Open Sign PDF and drop in a PDF.
- Click New Signature and draw or type it, or pick a saved one.
- Place the signature on the page, then move or resize it.
- Click Export Signed PDF.
A new signed copy is saved and the original stays unchanged.
What a signature here means
Both Preview and Sign PDF place an image of your signature on the page, like signing on paper. Neither is a certificate-based digital signature. Check whether the person asking for your signature needs a certified one before you send the file.
Tips and troubleshooting
- To remove a saved signature in Sign PDF, right-click it in the list and choose Delete Signature.
- If you prefer typing, choose Type in the signature creator and pick a style.
- Sign a copy of the file and keep the original, so you can fix a misplaced signature without starting over.
Frequently asked questions
How do I sign a PDF on my Mac?
Open it in Preview, show the Markup toolbar and click Sign. Or drop the PDF into Sign PDF in Toolbox, create a signature, place it and click Export Signed PDF.
Can I type my signature instead of drawing it?
Yes. In Sign PDF, choose Type in the signature creator and pick a style.
Is this a certified digital signature?
No. It places an image of your signature on the page, like signing on paper. It is not a certificate-based digital signature.
Is the PDF uploaded anywhere?
No. In Sign PDF the document stays on your Mac, and you do not need an account.