Colour personalisation module for Wedding cards site

Development of a bespoke solution to add a colour wheel and text personalisation module to our website with real time preview. We are selling Wedding cards online and would like our clients to be able to edit the colour of their artwork in real-time from pre-uploaded templates and choose their own wedding colour scheme. Once colour scheme has been edited, they will have the ability to typeset their own text, choose different fonts and colours, this is shown on screen real-time. On successful completion of the design, they can validate their artwork an place their order. At this stage a Print Ready PDF is generated and sent for production. We would like to use the Pantone colour schema, so there might be a need to license this and we will source the colour definitions. A module to create and upload templates from InDesign of PDFs will have to be created. A demo version of the website can be visited at [login to view URL] Please find attached below sample PDFs of the cards we want to personalise.