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Acrobat 6 Professional:
When selecting Advanced > PDF Optimizer > Clean Up (in Acrobat 5: Tools > PDF Consultant > Optimize Space), the "Remove Unused Named Destinations" is turned on by default.
Yet this operation is not fully aware of Acrobat capabilities which may utilize named destinations, and can make a wrong judgment as to which destinations are not used. Named destinations which are identified as being "unused" are deleted (damaging the functions which use them), including:
* Destinations which are exclusively used by links in other PDFs or in web pages
* Named destinations used in JavaScript functions (eg popup menus)
* A named destination used as a default opening view
No warning is issued when activating this function as to the possible effect on interactive features.
To experiment, you may use this example: http://www.microtype.com/resources/bugs/OptimizeSpace.pdf (11KB)
Shlomo Perets
MicroType * http://www.microtype.com FrameMaker, Acrobat training & consulting * FM-to-Acrobat TimeSavers FrameMaker-to-PDF Assistants: Form, Navigation, Presentation, Defaults
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