Adobe 65023809 Printing Guide - Page 127

7. Select Discard User Data in the left pane of the dialog box to allows deletion of comments, file attachments, private data embedded by other applications, and hidden layer content. 8. Select Clean Up in the left pane of the dialog box to remove unnecessary items from the document. By default, only elements that do not affect functionality are selected. If you are unsure of the implications of removing other options, you should use the default selections. You can choose from these options: • Object Compression Options: Lets you remove all compression or compress document structure. If you've chosen compatibility with Acrobat 6.0 or later, you can also compress the entire file or leave the compression unchanged. • Use Flate To Encode Streams That Are Not Encoded: Analyzes if applying compression to a particular stream will reduce file size. Compression is applied only if file size will be reduced. • In Streams That Use LZW Encoding, Use Flate Instead: Replaces LZW encoding with Flate encoding. • Remove Invalid Bookmarks/Remove Invalid Links: Eliminates bookmarks and links that point to deleted pages or to other invalid destinations. • Remove Unreferenced Named Destinations: Deletes named destinations that the PDF document does not reference internally. Because this option does not check for links from other PDF files or websites, it may not fit in some workflows. As with links and bookmarks, deleting these aspects of the PDF may impair navigation when viewed on screen, but has no adverse effect on imaging. • Optimize The PDF For Fast Web View: Restructures a PDF document for page-ata-time downloading (byte-serving) from web servers. This option has no benefit for printing, so it can be set on or off. 9. Click OK, name the new optimized PDF file, and specify a location for it. The original PDF document remains unchanged. For information on specific PDF Optimizer options, see Complete Acrobat 9 Pro Help, available in the Help menu. Using the Job Definition Format (JDF) Keeping track of a job's specifications, especially on a complex job, can be challenging. Job Definition Format (JDF) provides a streamlined way to create an efficient, automated workflow based on Adobe PDF. The features in Adobe Acrobat 9 Pro enable you and your customers to create JDF files on the desktop to preserve information that can be used later in the workflow. About JDF files JDF is a job-ticketing file format that provides a mechanism to specify and control all of the processes in print production, from job submission through prepress, press, and postpress. As a device-independent standard, JDF can describe every part of a job (cover, inside pages, binding, number of copies, and so on) and link management information systems (MIS) with production workflow systems-no matter what tools are used. JDF places individual actions into a greater context, so that each element is recognized as part of the whole. In the same way that Adobe PostScript describes pages and Adobe PDF describes documents, JDF describes jobs. Acrobat 9 Pro JDF files include product information, such as job ID, number of copies, binding settings, and customer information; section data for each section of the job, such as the section name, number of pages, page size and orientation, scaling percentage, and inks; and file data for each native or PDF file assigned to a section, including the file name, document name, and page range. You can add more job data to JDF files as more information is obtained about the job's specifications. You can create a high-level JDF file that describes only a rough outline of the job; as you add information, the outline can evolve into a detailed product description. You can embed PDF creation settings (.joboptions files) and preflight profiles in a JDF to ensure the integrity of the files before the job enters print production. Acrobat 9 Pro compares the job description with the properties of the assigned files and reports any discrepancies in page size, inks, or the number of pages available in the associated documents. Adobe Creative Suite 4 Printing Guide 125