I think you are aiming a bit too high atm...but it is your book, so i suppose you can do it if you want...one problem would be getting people to find the download, you would have to advitise a specific site (eg: rotographic) and then try to attract people to it, which cou;d be a hard task...and remember, a downloadable version could be coppied to a CD, Flopyisc, paper, anything compatible too it...you need to think about the pros and cons about it... but what?...on adobe you can save it to disk and then print it...and people could still use the print screen button as a way of printing/copying it...