Hi! I can do this script in C# and using this framework: [login to view URL] I propose to use ImageMagic because there is no way to manipulate print dialog programmatically. Well, there is actually a way, I can script it using e.g. AutoIt but disadvantage will be that script will simply simulate user actions so: A). You will see what everything what it does (opens folder, select each single file, right click, etc...) on your screen and... B). You can't use your computer while script works.
Please let me know which approach you like better.
I already have lots of experience with implementing shell extensions (new commands in context menu) and with image processing as well.
Best regards,
Oleg