...pdf 1.3 (Acrobat 4) doesn't support transparency therefore it needs to be flattened during export, if vector and text elements are below these effects when exported to these formats they will get rasterized, keeping vector and text elements above will prevent this...
...pdf 1.4 (Acrobat 5) to 1.6 (Acrobat 7) supports transparency and therefore your text and vector elements should be fine...
...Indesign CS2 only exports up to pdf 1.6 (Acrobat 7), unless you have CS3 the latest version you'll get is pdf 1.6 (Acrobat 7)...
...hyperlinks, bookmarks, sound, movies and buttons are applied or created in indesign...
...you can create hyperlinks so that when you export to Adobe PDF, a viewer can click a link to jump to other locations in the same PDF document, to other PDF documents, or to websites...
...Choose Window > Interactive > Hyperlinks to display the Hyperlinks palette...
...bookmarks you create in the InDesign document appear in the Bookmarks tab on the left side of the Acrobat or Adobe Reader window. Each bookmark can jump to a page, text, or graphic in your document...
...Choose Window > Interactive > Bookmarks, to display the Bookmarks palette...
...you can add movies and sound clips to a document, or you can link to streaming video files on the Internet. Although media clips cannot be played directly in the InDesign layout, they can be played when you export the document to Adobe PDF, when you export the document to XML and repurpose the tags, or when you package for GoLive.
QuickTime 6.0 or later is required to work with movies in InDesign. You can add QuickTime, AVI, MPEG, and SWF movies, and you can add WAV, AIF, and AU sound clips...
...for other users to view media in a PDF document, they must have Acrobat 6.x or later to play MPEG and SWF movies, or Acrobat 5.0 or later to play QuickTime and AVI movies...
...when you create a button using the Button tool, you can drag the button area, or you can click to specify the height and width in a dialog box...
...use the Selection tool to select the image, shape, or text frame that you want to convert to a button. You cannot convert a movie, sound, or poster to a button. Choose Object > Interactive > Convert to Button...
Andrew