Logo Resizing & Hosting

Hello. I'm am starting to learn how to advertise for lead generation on Facebook and am thinking about purchasing your product. I'm currently using Wufoo which I believe is a little behind the times. I have to put in extra codes in to resize logos for mobile devices etc. Would I need to take these same extra steps with your product? Also can I host my photos through you or will I need to continue using Dropbox? Thanks!

You may use the header element to include a heading image on your form: 

Once you add the element you can go to the settings and include an image, you can upload a new image, select the already uploaded or provide the link to an image hosted on your own server: 

You will also find other options once you have uploaded the image: 

The image should be also resized according to the device where the form is loaded, JotForm forms are mobile responsive. 

If you have questions, let us know.