Posts tagged "PDF"

Adobe InDesign: Adding Bookmarks for Adobe Acrobat

by Barb Binder on RockyMountain Training blog

Sure, you can add bookmarks in Adobe Acrobat, but should you? Nope, not in my opinion. I teach how to add and edit bookmarks in my Adobe Acrobat classes, but I also take the time to make sure that my Word users know how to create bookmarks from styles using PDFMaker in Word, [...]
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Document Overhead in InDesign’s PDF Can be Huuuuuuge

By David Blatner in InDesignSecrets.com

In which an exploration of why a PDF file is too large leads to two discoveries and an awesome tip

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Lost Images in the PDF on Your iPad or iPhone?

By Steve Werner in InDesignSecrets.com

Have you created a PDF and when you look at it on your iPad or iPhone some images are missing? Find out why.

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When You See Thin White Lines in Your PDF Files

You view your PDF on screen and — gasp! — tiny white lines! Disaster or not?

Have you ever opened a PDF file and seen thin white lines where there shouldn’t be any? In general, the white lines, or “light leaks” are due to a PDF that includes flattened transparency — transparency effects (such as placed PSD files) in a file saved in a file format that doesn’t support transparency (such as Acrobat 4, a.k.a. PDF version 1.3).

Flattening transparency means “faking it” by creating opaque areas that look transparent. But these opaque areas have to fit together like a mosaic, each piece right next to the next. The result is that sometimes white peeks out between them. In the vast majority of cases, this appears only on screen! Sometimes it shows up on low-resolution printers, too, but virtually never in high-res commercial output.

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Changing Layer Visibility in an Interactive PDF

Here’s a tutorial on how to change layer visibility in an interactive PDF file.

Show/hide buttons can let you show and hide objects which have themselves been turned into buttons. But, in InDesign, show/hide buttons cannot control the visibility of layers. I think it’s because of the way buttons are handled in a PDF file. They are treated as a separate “layer” above the “content” of the PDF file. (The Preview panel in InDesign CS5 is mostly accurate in previewing SWF output, not PDF, because it uses InDesign’s new Flash capabilities.)

However, you can change the layer visibility of a PDF file, you just can’t do it in InDesign alone. You also have to make use of the layer controls in Acrobat. So here’s a simple example which has three layers—a yellow background, text, and a graphic. We’d like to turn the background on and off with a button.

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