You may have noticed that, in the WAR GAMES giveaway, I specified EPUB as the reading format. Why did I do this?
Well, first, because EPUB is an international standard put together by the International Digital Publishing Forum and I’ve got the hots for international standards. I love them. Without international standards, you wouldn’t be able to have your luggage tagged from one international destination to another, make phone calls or send a postcard to a friend, for example.
Let me admit something to you. I’m also an open-source fan. I don’t like proprietary systems. I like to rip things apart to see how they work. EPUB fills those criteria.
PDF, while widely known and used, is an Adobe product and, while I adore FrameMaker, Adobe has been notoriously antagonistic (or indifferent, take your pick) towards Linux. What really bites in this regard is that Adobe products are available for Apple (a *NIX variant) but they will not go that bit further and port across to Linux.
Secondly, you have to understand the philosophy behind the two products. PDF was created as a screen alternative to print, at a time when most documents were still being sent from place to place in paper form. In order to win over those print fans, Adobe created the Portable Document Format (PDF), that had all the advantages of a printed document, but without the horrendous shipping and time costs.
Because Adobe was targetting print fans, PDF gives you a printed page on a monitor. You see the page as the author intended, complete with the typefaces, margins and positioning as the author intended.
The production of a PDF, then, is a completely different proposition to the production of an EPUB, where the size of screen, margins and even typefaces and their colours vary according to the reader’s choices on her/his screen.
PDF has another problem. Where the PDF hasn’t been constructed to be reflowable, it will look terrible on your screen. I know this because I’ve tried (and failed) to read dozens of PDFs on various ereaders and they are a pain. Having to depend on the PDF author/publisher to do the right thing is a risk I am no longer willing to take, and one I don’t wish to impose on readers.
And, lastly, because PDF is a faithful rendition of a printed page, all the considerations that didn’t have to go into an EPUB have to go into a PDF. That is, I have to cater for widows, orphans, gutters, rivers, hyphenation, and so on. This is not a trivial task if I want to do it properly and, believe me, I want to do this properly.
Having said all that, I haven’t ruled out the possibility of having PDF giveaway versions of my Sandal Press books, but it’s just going to have to wait until I have a bit of spare time. (Although, if you really want a copy, Smashwords has WAR GAMES in PDF to sell you.)
Hope this explains the reasoning. Have a good weekend and I’ll catch you next week.
ADDITIONAL: Oops, I forgot to mention. The winner for the WAR GAMES giveaway ended up being two winners and copies have been sent to Cathy Pegau and Barbara Ann Wright. EPUB, natch!

