Adobe 13101332 User Guide - Page 451

Adobe Photoshop Help Using Help | Contents | Index Saving and Exporting Images Back 451 Image Interpolation Anti-aliases the printed appearance of a low-resolution image. Downgrade Color Profile If you selected ICC Profile (Windows) or Embed Color Profile (Mac OS) for a version 4 profile in the Save dialog box, downgrades the profile to version 2. Select this option if you plan to open the file in an application that does not support version 4 profiles. PDF Security Specifies security options such as password protection and restricted access to a file's content. Choose 40-bit or 128-bit RC4 encryption for a lower or higher level of security. For more information on PDF security, see Acrobat Help. Include Vector Data Preserves any vector graphics (such as shapes and type) as resolution-independent objects, ensuring smoother output. When it is selected, you can select the following options: • Embed Fonts ensures that all fonts used in the file are displayed and printed, even on computers that do not have the fonts installed. Bitmap fonts, fonts that don't allow PDF embedding, substitute fonts, type that uses the faux bold style, and warped type cannot be embedded. Selecting Embed Fonts increases the size of the saved file. • Use Outlines for Text saves text as paths. Select this option if embedding fonts results in a file that is too large, if you plan to open the file in an application that cannot read PDF files with embedded fonts, or if a font fails to display or print correctly. Text saved as outlines is not searchable or selectable in a PDF viewer. You can, however, edit the text when you reopen the file in Photoshop. Note: The PDF viewer may display a substitute font if both Embed Fonts and Use Outlines for Text are deselected. Saving files in PNG format (Photoshop) You can use the Save As command to save RGB, indexed-color, grayscale, and Bitmapmode images in PNG format. Note: You can also save an image as one or more PNG files using the Save for Web command (Photoshop) or the Save Optimized command (ImageReady). For more information on optimizing images, see "Optimizing images" on page 415. To save a file in PNG format: 1 Save the artwork, and choose PNG from the Format menu. (See "Saving files" on page 446.) 2 Select an Interlace option: • None displays the image in a browser only when download is complete. • Interlaced displays low-resolution versions of the image in a browser as the file downloads. Interlacing makes download time seem shorter, but it also increases file size. 3 Click OK. Using Help | Contents | Index Back 451