Besides file size, is there any reason I shouldn't use images larger than 600px wide
I am new to e-publishing, so please forgive me if this is a silly question. I have tested this out by using images at, for example, 1000 px wide. When previewed in the online Kindle previewer, they seem to automatically size down to auto width or height (which ever hits the page margin first). It keeps proportion and seems to look fine. What is the down side to using images larger than the screen? If my file size is below the max file size, then should I still be concerned about optimizing the photos?
Thanks for your help!