But what about when you need to edit something? PDFs lock it all down. I've had to retype whole documents because the original was gone and the PDF wasn't changeable. They're fine for a final copy you just view, but they're not a great working backup. A simple text file or the original format is way more useful if you ever need to fix a mistake.

Actually nesting works fine if you keep the reference path relative.

Three days just for one comic book sounds like a nightmare.