When my first book was published, I enjoyed searching for "iText in Action" and I blogged about every site where it was mentioned. Now that there's a second edition, I no longer have time to do so. Fortunately, the marketing department at Manning allows sites to use excerpts from the book for blog —and other— posts, giving away a promotion code for a 40% deduction. And when they do so, they tweet about it:
The article is a copy/paste from pages 304 to 307 of the book, explaining a more exotic feature of PDF: how to establish JavaScript communication between HTML and PDF. A similar article about establishing communication between Flex (ActionScript) and PDF (JavaScript) (page 549-558) was already published on the Zenika site.
If you know of other sites where the book is promoted, please let me know, and I'll write a short blog post about it.