Adobe 23101335 User Guide - Page 320
Viewing animated images in Photoshop, Saving animations, Saving animations as animated GIFs
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310 CHAPTER 11 Creating Animations (ImageReady) To optimize an animated image: 1 Choose Optimize Animation from the Animation palette menu. 2 Set the following options: • Bounding Box to crop each frame to the area that has changed from the preceding frame. Animation files created using this option are smaller but are incompatible with GIF editors that do not support the option. (This option is selected by default and is recommended.) • Redundant Pixel Removal to make transparent all pixels in a frame that are unchanged from the preceding frame. This option is selected by default and is recommended. The Transparency option in the Optimize palette must be selected for redundant pixel removal to work. (See "Making transparent and matted images" on page 339.) Important: Set the frame disposal method to Automatic when using the Redundant Pixel Removal option. (See "Setting the frame disposal method" on page 308.) 3 Click OK. 4 Apply optimization settings, as described in "Optimizing images" on page 320. When optimizing the colors in an animation, use the Adaptive, Perceptual, or Selective palette. This insures that the colors are consistent across frames. (See "Generating a color table" on page 330.) Viewing animated images in Photoshop When you open a file containing an animation in Photoshop, only the frame that was selected when you saved the file in ImageReady is displayed. You cannot edit the animation frames separately, play the animation, or save the animation as an animated GIF. If you add a new layer to the file while in Photoshop, the layer is added to all frames of the animation. However, the new layer will only appear in the selected frame when you reopen the file in ImageReady. If you change the stacking order of layers while in Photoshop, the stacking order of layers will be changed when you reopen the file in ImageReady. Saving animations You can save an animation as a series of GIF files or as a QuickTime™ movie. Saving animations as animated GIFs Animations that you view in a Web browser are called animated GIFs. When you save an optimized document containing an animation, you can choose to generate an HTML file that contains code for displaying the animated GIF in a Web page. The resulting Web page can contain just the animated GIF or additional Web features, such as links and rollovers, depending on the source document.