My daughter is an author/illustrator doing extremely fine work using graphite on paper. She has no interest in doing the actual illustration work on a screen. But she does use a flatbed scanner to get her work into photoshop to prepare files for print. She also layers hand-written scalable text onto some of the illustrations.
She’s platform agnostic—she has been using a not-so-great dell laptop for this work to date. As far as I can tell, all the other stuff she does (email, web searches, etc) could be done quite nicely, maybe even better, with an iPad Pro. She’s tried my 12.9 pro with 2nd gen pencil for the text and it works well for the purpose.
So, that leaves scanning. Are any of you flatbed-scanning and prepping files for print? Are Epson scanners generally suited to the purpose? Can you recommend software to replace photoshop for this purpose?