39. Incorporate Multimedia in a Presentation Before You Begin  33 Create a Multimedia Link
Adding multimedia to a PDF can be accomplished with a few simple clicks and drags of the mouse. All you need to do is select the Add Sound or Add Movie tool, create a link, and specify a source file and a few options. Adding sound or video to a PDF file is a great way to add some pizzazz to a presentation or make a document come alive . One important caveat to keep in mind is that adding sound or video can greatly increase the size of the PDF file ( especially for video) if you choose to embed the multimedia files. You do not have to embed the multimedia source files into the PDF, but if you don't, you must ensure that the multimedia files are delivered along with the PDF and that their location remains the same relative to the PDF file that links to them (such as keeping them all in the same folder). KEY TERM  | Multimedia This refers to digital content other than text or static graphics, including audio, video, and animation. |
| 1. | Create a Multimedia Link Click the Tools menu, select the Advanced Editing submenu, and select Movie Tool or Sound Tool . Click and drag (or simply double-click) with either tool in your document to define a size and location for the hot spot for the link. This launches the Add Sound or Add Movie dialog box. NOTE  | The point of a poster is to provide the user with some idea of the content of the movie. If your movie fades in from black (as many do) or has an initial frame that doesn't convey meaningful information about the movie clip itself, the default option of using the first frame of the movie isn't very helpful and should be avoided. Instead, consider creating a file based on a different frame in the movie or a piece of concept art and using that as the poster for your movie. | | | 2. | Specify a Source File Click the Browse button and locate and open the desired sound or movie file on your hard drive. For movie files, make sure the Snap to Content Proportions check box is selected. For both sound and movie files, make sure the Embed Content in Document check box is selected if you want to embed the source files in the PDF. The Poster Settings section lets you set the initial image for the link. For movie links, the default option is to create the poster from the movie (using the first frame of the movie), although you can choose to not use a poster or to create a poster from a file. For sound links, your only choices are to not use a poster or to create a poster from a file. KEY TERM | | Poster A still image used to represent the content of a video clip. It is often the first frame of the video, but it can also be a piece of concept art.
|  | | 3. | Test the Multimedia Link
Using the Hand tool, click the multimedia link you just created. Your sound or movie will start playing. You can rewind and fast forward movies while they play with the left and right arrow keys; however, you can't stop the sound from playing after you activate it.
| TIP  | Change the look of the sound button by right-clicking (Windows) or Ctrl-clicking (Mac OS) the sound link and selecting Properties . In the Multimedia Properties dialog box, click the Appearance tab and change the border color , outline, or style. |
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