Design a web-based content editor tool for teachers. Looking for creative, easy to use designs

Hello, I'm looking for someone to design a content editor tool for teachers. I'm pretty open to ideas and designs (easy to use ones!!), but I'd like something with a demo/ clickable content that is also able to be viewed through a browser. I have a mockup example attached, here are the functionalities that I'd like included with the design (Stars are must haves): -*A user should be able to log in with an email/ password *A user should be able to upload files to the site. (common file types - jpegs, gifs, pdfs) *A user should be able to edit their uploaded documents by adding text, images, drawing features (basic drawing tool), and/or videos. They should also be able to create a new document in this way. *A user should have the ability to print or export their document in common file types. * A user should have access to a library of files they upload and/or create. - A user should be able to publish their document to a web site ( or share with the google suite). -A user should be able to use google image search (with the option for content to be commercially shareable), and add these pictures to their content. -A user should be able to add youtube videos to their documents. -A user should have access to a library of icons and be able to add to their document. (basic emoticons) -A user should have access to a library of stock images. -A user should have access to templates on common types of documents (math, science, reading sections, etc) to help create materials. -A user should be able to use the software very easily and without training.