How to add digital signature in pdf for free

This guide explains how to add a blank signature field to a PDF document using Adobe Acrobat Pro. A digital signature is more secure that an ink signature. PDF readers can check that the document was written and signed by the same person and has not been modified by an unknown person.

Video Guide

Follow these steps for a more accessible, secure, digitally signed PDF.

Add a digital signature field

1. Open your PDF document and head to the Tools Menu.
2. Select “Prepare a Form.”
3. From the left sidebar, choose “Add Form Components.”
4. Click “E-signature Fields.”
5. A box will appear.

   Place it where you want the signature.

Set document properties

1. Right-click on the signature box and choose “Properties.”
2. Add a tooltip for Assistive Technology. For example, “Signature for Shawn Jordison.”
3. There are options to mark the document as “Read Only” and have the signature required.
4. Close the Properties box.

Sign the Document

1. Complete the document fields and then click on the signature field.
2. A prompt wil
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