Adobe 65030089 User Guide - Page 214
Multimedia and special effects, Images, Image basics, Image file formats, Locate images
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208 Chapter 9: Multimedia and special effects Images Image basics Image file formats GIF (Graphic Interchange Format) An 8-bit color format that can display 256 colors and is useful for images with a limited range of color. GIF images support the transparent attribute. They are best for grayscale photographs, cartoons, small icons, buttons, bars, lines, and bullets. They can be interlaced and animated. JPEG (Joint Photographic Expert Group) JPEG format is commonly used to display photographs and other continuous-tone images in HTML documents. If you use images with 256 colors or more, use JPEG format. JPEG files have either a .jpeg or .jpg filename extension. BMP (Windows Bitmap) The standard bitmap image format intended for Windows, used in WinHelp applications. Bitmap images support up to 24-bit color. When you import WinHelp projects into HTML, the bitmaps are converted into GIF or JPG format. You can use bitmaps and icon formats (ICO files) when you add link controls or HTML Help controls (custom buttons.) MRB (Multi-Resolution Bitmap) A Windows Help image format that contains an image saved in different screen resolutions in a single file. The program imports these files from WinHelp projects and converts them into GIF images. WMF (Windows Metafile) A vector graphics format intended for Windows systems. WMF files are commonly used as clip art for word-processing applications. The program imports these files from WinHelp projects and converts them into GIF images. PNG (Portable Network Graphics) A bitmap image format like GIF. The most recent versions of Netscape Navigator and Microsoft Internet Explorer support PNG. Tips: • Create a stationery watermark effect by displaying background colors and images from the Borders And Shading dialog box. • When you select an image, the Cable Drum button appears . Use it to link topic items (such as images, text, and tables) with another topic item, and assign a Dynamic HTML effect to the connection. • When you import a Microsoft Word file or an HTML file, all images are imported with the file (images must be in anchored frames.) Note: If you generate WebHelp Pro or WebHelp output, use GIF or JPEG files. Locate images Use the Graphics Locator to scan hard drives and folders for image files, view thumbnails, and copy files. 1 In the Toolbox pod, double-click the Graphics Locator . 2 Select the graphic file format to search for. 3 Enter the path for the search or browse to a new location. 4 Click Search. Last updated 12/14/2011
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