Adobe 22020807 User Guide - Page 330

USING ACROBAT 9 PRO 324 Editing PDFs Fonts panel To ensure an exact match to the source document, it's a good idea to embed all fonts used in the document. If you don't need an exact match and you prefer a smaller file, you can choose not to embed fonts for roman text and East Asian text (Traditional Chinese, Simplified Chinese, Korean, and Japanese). Text in these languages is replaced with a substitution font when viewed on a system that does not have the original fonts. The Fonts panel of the PDF Optimizer contains two lists for fonts: fonts that are available for unembedding, and fonts to unembed. Certain fonts aren't available for unembedding and don't appear in the Fonts panel. To unembed fonts in a document, select one or more fonts in the Embedded Fonts list, and click the Unembed button. If you don't want to embed subsets of the embedded fonts, deselect Subset All Embedded Fonts. To prevent unembedding for all fonts in the document, select Do Not Unembed Any Font. Transparency panel If your PDF includes artwork that contains transparency, you can use presets in the Transparency panel of PDF Optimizer to flatten transparency and reduce file size. (Flattening incorporates transparency into corresponding artwork by sectioning it into vector-based areas and rasterized areas.) PDF Optimizer applies transparency options to all pages in the document before applying other optimization options. If you select the Acrobat 4.0 And Later compatibility setting, the Transparency panel is enabled and all transparency in the file is flattened during optimization. This ensures compatibility with Acrobat 4.0 and earlier, which doesn't support transparency. When you create flattening presets, they appear with the default presets in the Transparency panel. Note: Transparency flattening cannot be undone after the file is saved. Discard Objects panel The Discard Objects panel lets you specify objects to remove from the PDF and lets you optimize curved lines in CAD drawings. You can discard objects created in Acrobat and in other applications. Selecting an object removes all occurrences of that object within the PDF. In the Discard Objects area, you can select from these and other options: Discard All Form Submission, Import And Reset Actions Disables all actions related to submitting or importing form data, and resets form fields. This option retains form objects to which actions are linked. Flatten Form Fields Makes form fields unusable with no change to their appearance. Form data is merged with the page to become page content. Discard All JavaScript Actions Removes any actions in the PDF that use JavaScript. Discard All Alternate Images Removes all versions of an image except the one destined for on-screen viewing. Some PDFs include multiple versions of the same image for different purposes, such as low-resolution on-screen viewing and high-resolution printing. Discard Embedded Page Thumbnails Removes embedded page thumbnails. This is useful for large documents, which can take a long time to draw page thumbnails after you click the Pages button. Discard Document Tags Removes tags from the document, which also removes the accessibility and reflow capabilities for the text. Convert Smooth Lines To Curves Reduces the number of control points used to build curves in CAD drawings, which results in smaller PDF files and faster on-screen rendering. Detect And Merge Image Fragments Looks for images or masks that are fragmented into thin slices and tries to merge the slices into a single image or mask. Last updated 9/30/2011