Adobe 22020807 User Guide - Page 72

USING ACROBAT 9 PRO 66 Creating PDFs Small Size/High Quality Drag the slider to set the balance point between file size and quality. Click Options to customize optimization with specific settings for file compression and filtering. Make Searchable (Run OCR) Select this option to convert text images in the PDF to searchable and selectable text. This option applies optical character recognition (OCR) and font and page recognition to the text images and converts them to normal text. When selected, this option also adds tags to the document, which improves accessibility for disabled users. Click Options to specify settings in the Recognize Text - Settings dialog box. See "Recognize text in scanned documents" on page 68. Make PDF/A Compliant Select this option to make the PDF conform to ISO standards for PDF/A-1b. When selected, only Searchable Image (Exact) is available in the Recognize Text - Settings dialog box for the PDF Output Style option. Add Metadata When selected, the Document Properties dialog box appears after scanning. In the Document Properties dialog box, you can add metadata, or information about the scanned document, to the PDF file. If you are creating multiple files, you can enter common metadata for all of the files. Scanner Options dialog box Data Transfer Method Native Mode transfers in the default mode for your scanner. Memory Mode is automatically selected for scanning in resolutions over 600 dots per inch (dpi). User Interface The Hide Scanner's Native Interface option bypasses the windows and dialog boxes provided by the scanner manufacturer. Instead, scanning from Acrobat opens the Custom Scan dialog box. Invert Black And White Images This option creates positive images from black-and-white negatives, for example. Optimization Options dialog box The Optimization Options dialog box for image settings controls how scanned images are filtered and compressed for the PDF. Default settings are suitable for a wide range of document pages, but you may want to customize settings for higher-quality images, smaller file sizes, or scanning issues. Automatic Applies default settings to balance file size and quality at a moderate level. • Aggressive Applies settings that minimize file size. In some cases, selecting this option may visibly affect the quality of the scanned PDF. Custom Settings Makes additional settings available under Compression and Filtering and disables the Aggressive setting under Automatic. If you select Custom Settings, the Color/Grayscale or Monochrome settings are available, depending on the option you selected in the Acrobat Scan dialog box. Color/Grayscale settings When scanning color or grayscale pages, select one of the following: • Lossless Does not apply compression or filters-such as Deskew, Background Removal, and so forth-to scanned pages. • Adaptive Divides each page into black-and-white, grayscale, and color regions and chooses a representation that preserves appearance while highly compressing each type of content. The recommended scanning resolutions are 300 dots per inch (dpi) for grayscale and RGB input, or 600 dpi for black-and-white input. • JPEG Applies JPEG compression to the entire grayscale or RGB input page. Note: The scanner uses either the selected Color/Grayscale option or the selected Monochrome option. Which one is used depends on the settings you select in the Acrobat Scan dialog box or in the scanner's TWAIN interface, which may open after you click Scan in the Acrobat Scan dialog box. (By default, the scanner application dialog box does not open.) Last updated 9/30/2011