The new section covers how to create Panel View magnification targets to zoom selected sections of a page. As with the rest of the Guide, the details are sketchy at best, and the questions it leaves many. Unfortunately, Amazon has not provided a sample graphic novel to use as reference as they have for children's books and the standard KF8 format. Additionally, all the KF8 graphic novels that I've downloaded so far are DRM'd, so that I haven't been able to crack them open and look at their underlying code. I'm still having some issues getting absolute positioning to work correctly with text layers in the zoom regions, which is a bit frustrating to say the least.
Of primary importance, however, is the increase in the allowed size of image files to 800Kb in order to account for the necessary higher resolution graphics that are required. With zoom factors ranging up to 250%, recommended image resolution is as much as 1560x1500 pixels for a half page in landscape orientation, or 1536x900 for a full page image set to the default 150% zoom factor. This allows small print in fixed layout to be viewed at larger sizes, and artwork details to be viewed up close. In addition, the Panel View provides a "guided view" with the zoomed sections proceeding sequentially with each swipe.
Beyond allowing for zooming areas to view more detail, the benefit applies to full page images in general, as high quality art can now be added without having to use highly compressed jpegs that blur and distort details even at their default size. The down side, of course, is larger overall file size, effectively removing the 70% royalty option for graphic novels, since the bandwidth charge would likely be greater than the profit margin (see my post here for more on that). However, at the 35% royalty margin no bandwidth fee is assessed, so your ebook file can be a large as you like (within reason, of course: no one wants to fill up their Kindle with just one book).
0 comments:
Post a Comment