Adobe Acrobat 8 3D - Manual (Page 350)

343 ADOBE ACROBAT 3D VERSION 8
User Guide
Optimizing
PDF Optimizer
PDF Optimizer provides many settings for reducing the size of PDF files. Some of the PDF Optimizer settings are
comparable to the settings that are available when you create a PDF file using Distiller. Whether you use all of these
settings or only a few depends on how you intend to use the files and on the essential properties a file must have. In
most cases, the default settings are appropriate for maximum efficiency—saving space by removing embedded fonts,
compressing images, and removing items from the file that are no longer needed.
Before you optimize a file, it’s a good idea to audit the file’s space usage. The space audit results may give you ideas
about where best to reduce file size. You can also reduce the size of your PDF by using the Reduce File Size command.
Important: Some methods of compression may make images unusable in a print production workflow. You should
experiment with various settings before making changes that can’t be discarded.
See also
“Reduce file size by saving” on page 48
Open the PDF Optimizer
❖ To open the PDF Optimizer dialog box, do one of the following:
• Choose Advanced > PDF Optimizer.
• Choose Advanced > Print Production > PDF Optimizer.
• Click the PDF Optimizer icon in the Print Production toolbar.
Note: PDF Optimizer isn’t available when Reflow is selected in the View menu.
Audit the space usage of a PDF
Auditing the space usage gives you a report of the total number of bytes used for specific document elements,
including fonts, images, bookmarks, forms, named destinations, and comments, as well as the total file size. The
results are reported both in bytes and as a percentage of the total file size.
1 Choose Advanced > PDF Optimizer.
2 Click the Audit Space Usage button at the top of the dialog box.
Optimize a PDF
Note: Optimizing a digitally signed document removes (and invalidates) the digital signatures.
1 Open the PDF Optimizer dialog box.
2 To use the default settings, choose Standard from the Settings menu, and then skip to step 6. If you change any
settings in the PDF Optimizer dialog box, the Settings menu automatically switches to Custom.
3 From the Make Compatible With menu, choose Retain Existing to keep the current PDF version of the file, or
choose a version of Acrobat that you want the PDF to be compatible with. (The options available in panels vary
depending on this choice.)
4 Select the check box next to a panel (for example, Images, Fonts, Transparency), and then select options in that
panel.