This has been a helpful discussion for me. I agree, Ingo, that publishing a format designed for printing makes very little sense. I've got a reputation with my coworkers as the guy who never uses paper. That's not wholly true, but there's almost never a single piece of paper on my desk. What I'm saying is that someone printing out their own books seems like something we don't necessarily want to support. On the other hand, PDF is nearly ubiquitous in a way that EPUB and other eBook formats are not, it would be a lot more convenient for non-savvy readers who wanted to download the books for offline reading than our current ZIP files, and it could showcase high-res versions of the illustrations (assuming we can effectively vectorize them). I think the biggest barrier to implementation of PDF has been the original desire to produce print-ready files with hand-corrected pagination. If we relax that requirement and simply publish them the way LaTeX generates them, would that remove our biggest obstacle? What are the technical obstacles? -- Jon ~~~~~~ Manage your subscription at http://www.freelists.org/list/projectaon