# 4. Deployment¶

## 4.1. Signature templating¶

Signatures can be rolled out for all users in a LDAP or AD enviroment. You have to provide a HTML file with supported variables. A list of variables can be found here. Images can be added to the HTML file but this should either be an Image URL or a based64 encoded image. Example:

<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot" />


The HTML file should be injected in the WebApp settings by using the tool ‘webapp_admin’ here. Check the inject signature paramaters in the “Signature option group” found in the code.