Out of the box Confluence does not allow you to call to action on your page via a button icon - introducing a simple solution created by GLiNTECH:
Make your pages more professional by displaying relevant links as a clickable button icon versus a plain text link
Ensure your users don’t miss important links or documents by displaying them as an obvious call to action
Design your button as you like with configurable background and text colours
Easy to configure with 2 properties that require configuration:
(1) button label for the text you’d like users to see, and
(2) the address you’d like to link to
For more information, or to download, visit the Atlassian Marketplace.