Quote:
Originally Posted by Sonist
Uhm, no. You are wrong. PDFs can reflow to display on smaller screens just fine. Do a search for "tagged PDF."
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I searched for it and it requires manual intervention, which means the millions of book scans from Google Books PDFs do not have it. PDF is not used just for fixed layout, but also as a simple container of images, which is what scans are.
ePubs require either manual typing of the text (easy for new books but hard for classics a la gutenberg) or OCR to automatically convert from the scans. PDF is way cheaper because it doesn't need OCR, just the page scans.
The very purpose of PDF is fixed layout. It's simply not ideal for electronic displays and people wanting to define their own preferred font, line and margin sizes.