PDF · Sign PDF

Sign a PDF on Mac

Type your name, or drop a signature image with the PDF, and place it on the page.

Runs on your Mac

Three steps. That's it.

1
Drop your files
Drag files onto Sign PDF, choose them with Choose Files, or right-click them in Finder.
2
Choose the options
Set what you need in the options panel, such as typed name or a signature image. Your choices are remembered for next time.
3
Get the result
The result lands in a new dated folder in Downloads › OneMacTools. Your originals are never changed.

What Sign PDF does

Sign on the last page, the first page or every page, in any bottom corner, with your typed name in a handwriting style or a PNG of your real signature, plus today's date if you like.

Options

Typed name or a signature imagePage: last, first or every pagePosition: bottom right, left or centreSizeAdd today's date

Great for

Sign a contract without printing
Initial every page of an agreement
Sign a form on the go

Questions about Sign PDF

Does Sign PDF upload my files?

No. Sign PDF runs entirely on your Mac, so your files never leave it and it works offline.

Will Sign PDF change my original files?

No. Results are saved as new files in a dated folder in Downloads › OneMacTools, and your originals are left exactly as they were unless you turn on an option that says otherwise.

What does Sign PDF need?

Just a Mac with macOS 26 or later. There's nothing else to install.