Add your signature to a PDF.
Insert a signature image into any page, at any size, in exactly the right spot — with a transparent background so it looks like ink.
Free to try · Your file never leaves this device
How to add your signature to a PDF
- 1
Open the PDF
Drop it on the page.
- 2
Add your signature
Upload a photo — Penmark removes the paper background — or draw a new one.
- 3
Position it
Drag, resize and download.
Background removal
A photo of your signature on paper becomes clean ink on a transparent background.
Pixel-precise placement
Drag with the mouse, or nudge with arrow keys.
Ink colour
Black or blue ink — many institutions ask for blue.
Common questions
Can I use a photo of my handwritten signature?
Yes. Upload it and Penmark lifts the ink from the paper so it sits naturally on the document.
Will the signature be blurry?
No. Drawn signatures are stored at high resolution and placed at full quality.