Is it possible to make the entirety of each slider image a clickable link, rather than adding text over the top?
My site is http://styledistributor.com/
Thanks for your help 
Hey there,
I hope you are well today and thank you for your question.
Unfortunately, this theme does not have that capability.
If its something you wish to have you can consider custom development.
If you are not a developer then you can consider customizations offered by Envato,
https://colorlib.com/out/envatostudio
Best regards,
Support.