Can I embed a link in an image?
Not in Stencil. Stencil images are primarily meant for social media sharing, downloading, using on your website/blog or presentations. Therefore links will be provided within captions or descriptions, not the image itself.
If you're sharing to Facebook from Stencil, you just need to include the URL in the "Add post description" field, provided when you are about to share on Facebook.
If you’d like the image to be linked for a blog, website, or presentation you may do so by using the link options within the software (WordPress, PowerPoint, Keynote, etc.) itself.