Could there be a way to upload to your gallery by connecting to the AR gallery within AR iPad? It could automatically resize the image to no bigger than 800px in x or y and then post it with the title of the painting in jpg or other format.

You could set it up that every time you wanted to upload a file it would require your password, or you could set up a settings tab that had your username and password stored for a one touch process.

-Sparky.