How to Add Your Signature to a PDF: Step-by-Step Guide

Step-by-Step

1. Upload the PDF you need to sign.
2. Create your signature — draw it with your mouse or touchscreen, or upload an image of your existing signature.
3. Place it on the page — drag it to the correct location, typically a designated signature line.
4. Resize if needed so it looks proportionate to the surrounding text.
5. Download the signed document.

Getting a Clean Drawn Signature

Drawing with a mouse tends to produce a shakier result than drawing with a finger or stylus on a touchscreen — if the tool is available on your phone or tablet, that's often the more natural way to get a signature that actually looks like your handwriting.

Using an Uploaded Image Instead

If you have a photo or scan of your actual signature on paper, uploading that image instead of drawing a new one can look more consistent with your usual signature. A signature on plain white paper, photographed with reasonable lighting and then cropped closely, tends to work well.

Placement Matters

Position the signature precisely on any designated signature line or field — a misplaced or overlapping signature can look unprofessional or, in some contexts, cause confusion about which field it applies to on a multi-signature document.