HTML5 drag and drop application needed

We require you to develop a website in HTML5. The website will be a membership site, and paid members will have the ability to access the following functionality once in the members area: - Create a new document (sizes etc. will be advised) OR open a document template OR open a previously saved document. - Drag and drop elements (text boxes) onto the document (ability to snap to grid, or move freely) - The ability to add text to an element element, e.g. text (type or cut/copy & paste) - The ability to add pictures to an element. (resize pictures, drag and drop as required, hyperlink a picture) - The ability to add hyperlinks etc. - Specify font types, colour, & style e.g. (underline, blod, italics, embossed etc.) - Save the document - Save the document as a template - Output the document to PDF, and save to disk etc. The workflow will look something like this: Log in > Open existing document OR open document template OR Create new document > Edit document, add elements and text and pictures as required > Save document > Export document to PDF. Full requirements will be supplied upon request or to the winning bidder. The interface will have a Web 2.0 look and feel. For the membership part of the website, you can integrate with this open source software: [login to view URL] Logos etc. will be supplied to be integrated with the site. IMPORTANT: You must supply live examples of similar sites you have created. The sites you supply must have a similar drag/drop design functionality. Please message me if you have any questions.