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Last updated on
Sep 23, 2025
Learn how to add digital signatures to your PDFs using Adobe Acrobat.
Digital signatures in Adobe Acrobat allow you to securely sign documents using a verified identity, ensuring authenticity and integrity. You can easily add digital signatures to contracts, forms, or official documents using secure IDs.
Select Digitally sign.
In the dialog box that prompts you with signing instructions, select OK to proceed.
Use the dotted cursor to draw a rectangle where you want the signature to appear.
In the Sign with a Digital ID dialog box, select the Digital ID you want to use to digitally sign the document and select Continue.
Note
If you don’t have a digital ID, create one before proceeding by selecting Configure New Digital ID.
In the Sign as <username> dialog box, verify your signature details and then enter your digital ID password.
To prevent further changes to the document after it's signed, select the Lock document after signing checkbox.
Select Sign, choose a location when prompted, and select Save.
After signing, a confirmation message appears in the signature panel, indicating all signatures are valid.
