I have an artboard in illustrator that contains the cover for a book. It has the front cover, back cover, and spine, all in a single artboard, with bleed, so that I can print to PDF and send that PDF to the printer.
But I also need to export some parts of that artboard independently. I need to export the front cover and the spine at the very least, with no bleed, as PNGs, to be used in the ebook and other marketing material.
I could do it manually, but is there a way to automate this? Is there a way to generate regions of an artwork that would be exported as separate PNGs? I explored the asset export but I can't figure out how to export an area instead of an object.
For reference, this is what the artboard looks like: