Custom Product design

I have a company that provides a wide format printing service and we do a lot of PVC banners, I am looking to let the customer design their own banner on the website and then purchase it through a payment gateway. I am looking for a flash/javascript app that I can insert into my website that will let the customer design there own banner and then purchase it. The app? will need to include the following features: **User Features required** Banner size (X and Y dropdown boxes) Insert/edit text (edit fonts, style and colour) Insert clipart (to be provided by me) Edit background colour insert/edit customer image (re-size, rotate, mirror) Move forward/backward (layers) Delete item Save banner for later Purchase **Management/admin Features Required** Set available sizes for X and Y dropdown boxes Set available fonts available Set price for each size Set available colours for text and background Set clipart categories and upload available images Once the customer has designed and ordered their banner there would need to be a high resolution PDF file available for download that I can put straight into the printer software and print, ie no pre-processing or editing. I can give details of what would be required in the template. If this works out I would want to use the same app for other products that we supply, such as custom stickers. The link below is to a website that I have no association with, but has the features and look that I would like the application to have: [login to view URL] If? you? have any other questions please do not hesitate to contact me. Regards Ben Bartholomew