Background Image From PDF

 From:  Michael Gibson
5305.2 In reply to 5305.1 
Hi propmaster, 40,000 pixels in width is an extraordinarily huge bitmap, you will likely need to reduce that to something more around 4,000 or so pixels across instead of such a huge size.

A 40,000 by 40,000 image would require roughly 6GB of memory all in one single chunk just in order to hold the uncompressed image data.

Also in order to display the background image it has to be uploaded to your video card as a texture map. Many video cards have a limit on the maximum size of texture that they can use, and by default MoI will only use a maximum texture size of 2048 by 2048, so by default your image will be resized down to that size before it's actually displayed anyway. You can bump up that limit in moi.ini (push the Edit .ini file button under Options > General) under:

So anyway the main thing is to try a quite a bit smaller image size than what you are currently using.

- Michael