I'm trying to put my render with a background image which worked the first time, but when I enlarged the resolution of the background image in photoshop to twice its size (from 4368 × 2084 to 8736 × 4168) and put it back in blender (and after doubling the size of the render resolution to match) the render is going off screen as shown in the pictures. How do I fix this?
Here's a link to screenshots: https://www.flickr.com/photos/163507419@N03/?
first one shows how I want it to look (this was when it worked at the 4368 × 2084 resolution), the others show what it looks like now
thanks in advance