Dropbox Sign add-on for Gmail

This article describes a feature that’s available to Dropbox Sign customers who’ve already installed the Dropbox Sign add-on for Gmail.

Important:

The Dropbox Sign add-on for Gmail will be discontinued, starting October 15, 2025.
You can no longer install the add-on.
Existing users can continue using the add-on until October 15, 2025. After this date, access and support for the add-on will be removed.

The Dropbox Sign add-on for Gmail allows you to easily sign attachments that are sent to your Gmail.

To sign attachments in Gmail:

Open the email with the attachment or attachments you want to sign.
Click the Dropbox Sign logo in the sidebar to open the add-on.
De-select any attachments you don’t wish to sign, then click Next.
- When your Dropbox Sign account opens in a new tab, sign in if prompted to do so.
Complete any fields and add your signature, as you would a ‘Just me’ signature request.
Click Sign in the upper-right once it’s completed, and you’ll be redirected to your email in Gmail.
Click Attach document to automatically update the attachment and respond to the email.

Note: You can also send signature requests with the Sign web app or API. If you need help to do so, use the contact us form.