Creating a link to redirect to another site

I'm wondering if there is an option to create a link on the Squarespace templates that once clicked, goes to either:  DropBox, Google Docs, Adobe Creative Cloud, or some other cloud based site. From there I'm looking to have people upload photos/video's, and once the upload is completed, then return them to the original site?

Hi TheTF, 

You can setup such a link using text, an image, a navigation link, a button or a Cover Page. There's information on setting up links to external sites on the Squarespace help article that I am linking below. If you setup the link to open in a new tab, visitors will be able to return to the tab where your site is open at anytime:

Adding links to your site - Link to external sites