PDF Optimizer

PDF Optimizer provides many settings for reducing the size of Adobe PDF files. Some of the PDF Optimizer settings are comparable to the settings that are available when you create a PDF file using Acrobat 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.

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.

Source: Adobe