export specific size image based on artboard size

These settings are most important, RGB 72dpi is for web/digital images.

Than make sure you check this setting.

If you need more help let us know

1. what exact clickstream you want to use t make your files
2. what file format
3. what the final usage is for your items, web, print, video, etc

Set up the artboard at 7 x 10 inches. Illustrator works in absolute dimensions.