Quote:
Originally Posted by kovidgoyal
Yes it's important to have the ability to represent complex objects, not just text, but still, page images!! You lose any advantage to having the content in digital form. You can't search it, index it, modify it, extract content from it. Pretty much the only advantage you're left with is the ability to store it and duplicate it. You may as well stick to paper. Page images are a complete dead-end. At least PDF isn't a total page image, you can still access the text as text.
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DJVU format is a good compromise. It can have both page images AND a text layer for searching and indexing. Also, the compression algorithms used are extremely effective for black-and-white text.