Most of your buttons will either be Visible or Hidden. Why have an invisible button? Don’t think of buttons as just something you click if you want a picture to appear when you click a button, you make two buttons: a visible one that you click and one that has a picture in it (set to Hidden). The default is Visible you can change the option in the Buttons panel menu. Buttons are a kind of “field” (in PDF parlance), and you have four options for a field’s visibility: Visible, Hidden, Visible but Doesn’t Print, or Hidden but Printable.Give the button a descriptive name at the top of the panel.To make a button actually do something-react when the user clicks it-you have to change the button’s behavior in the Buttons panel (see Figure 13-4). When you turn an object into a button, InDesign actually puts that object inside a button “frame.” This means you can select that nested frame (with the Direct Selection tool or by clicking the Select Content button in the Control panel), move it around, delete it, replace it with something else, and so on. It’s important to remember that buttons are containers, like a special kind of frame.
But the object comes to life when you turn on the Interactive Elements check box in the Export PDF dialog box, or the Include Buttons checkbox in the Export SWF dialog box. You can also turn a button back into an object by selecting Convert from Button.Īn object turned into a button acts like any other object-you can even print it. Or, click the Convert Object to a Button button in the Buttons panel (which you can find in the Interactive submenu, under the Window menu). You can make any selected frame or line into a button (except for frames that contain movies or sounds)-just choose Convert to Button from the Interactive submenu, under the Object menu or in the Context menu. Buttons are only useful in interactive PDF or SWF files, but they can do all kinds of things-jump to another page, play a movie or sound, or hide or show another button.
But there’s a third type of object, too: a button. If someone asks you to list InDesign’s basic building blocks, you might respond frames (which can include text or graphics or nothing at all) and lines.
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