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Dear Employers; In this project the most important point is desing page. Look design page that I added as an excel in below. Firstly I want  to learn which technique, language do you want to use in the project while users make desings? I want to use nosql or mongodb, but what is the best solution in database using for get performance and manage hundred of users? I am planing a hundred user connect to my Project and join a [login to view URL] group members number is for example 100 [login to view URL] open common designer page which I define in an Excel sheet. They drag down Picture into common design page at the same time  but how can we manage this processes, trafics?In this situation we meet slowness problem. For you which technology do you want to use? Is this processes is client side or server [login to view URL] is the best way for run higher performance? This answers are very important for me to giving this project to you. To gather members to this website is too hard as you [login to view URL] they meet an performance problem or bugs when they design common page or create profiles, they dont login [login to view URL] unfortunately I get fail. The other Project details are not important then this common page. If we get agree I will tell ans share with you all analysis about Project. Dont  concern about because I am an software developer as you.