Since my children’s picture book will be printed as an 8x8-inch square, I need an image that is two 8-inch squares side by side, with a bit of extra space for the bleed and for the spine. I decided to create an 8000x4000px image. Procreate will allow 12 layers for an image that size. I could have made a smaller image — say 6000x3000px — but I want to make sure that I have lots of headroom pixels to play with. With an 8000x4000-pixel image, I could conceivably go up to 26-inches square — that would be a hella big children’s book. However, for my purposes, having the extra resolution means that I won’t have to redraw this image to increase the resolution.
I started roughing out the image today. I used the camera in my iPad to take a picture of the thumbnail, then I the photo into Procreate. Once there, I scaled it up to fit the 8000x4000 image. I’ll have to figure out how to fit the title text on the page, that’s for sure.