Resize photo added to template

Resize photo added to template

I am new to Zoho and I am setting up my first campaign.  I have chosen a template I like, and replaced the existing photo with one from my computer.  When I did this, there were no options presented to me in regards to size, and the imported photo is displayed way too large.  If I chose the "edit" function, I am given a message to I have to upgrade to a subscription in order to be able to edit photos.  Would the upgrade give me the option to resize my photo?  Can this be done without upgrading to a subscription?