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In the latest update to Adobe InDesign CC, there are many changes and improvements to the EPUB workflow. In this movie I'll discuss a few key changes that I think will be important to you. First off, let's talk about images. In the latest update to InDesign, JPEG images are now generated using the .jpg extension versus the .jpeg extension. Not a huge deal necessarily, but always good to know in case you see it and are thrown off. In most cases these extensions can be used interchangeably. Alternate text attributes on images, which are a key component in making your document more accessible to those with disabilities, is now blank by default.
Whereas previously, it would be taking the embedded alternate text from the image file itself, now you'll have to add in your own alternate text to each image that you use inside of InDesign. In the Export Dialog and Object Export Options dialog, there is now an option labeled, Use Original Image. This will allow you to skip custom rasterization options for your images and simply use the original files that you placed into InDesign. Eliminating that extra step of having to set that up and have InDesign convert the images for you. When this is turned on, InDesign will automatically try to map the transforms on the object to CSS transforms.
This is going to help to try to preserve things like rotation, scale, and crop. It's not a foolproof solution by any means. So always check your documents after exporting to make sure that everything is still lined up properly. Objects have changed a bit in InDesign CC as well. Now, when you're using custom layout options, inDesign now has a better mapping of that to CSS properties to ensure that your layout looks consistent once you export it out to the final EPUB file. Floating CSS objects will now attempt to prevent overlapping in your documents upon export as well.
And image objects with text on a path will now automatically trigger rasterization. This is an attempt to keep their look consistent in the final EPUB document. The final major change to EPUB in this update revolves around Adobe Edge Animate files. Ever since CS6, InDesign has supported the placing of widgets published from Edge Animate using the animate deployment package publish target. In this update however, InDesign now supports iframe embedding of Edge Animate content with a few caveats. Be sure to test your Edge Animate content thoroughly to ensure proper display on your target devices.
For a more in-depth look at creating EPUB files with InDesign CC, be sure to check out our InDesign CC: EPUB Fundamentals course by Anne-Marie Concepcion.
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