dr8 don't support .pdf by itself
use ActiveX

you can use this Xtra

PDFxtra

Features
Fully Integrated to Director's stage: create sprites of type PDF.
Easy to use: No Lingo scripting required. Advanced features can stillbe scripted.
Control Acrobat's superior printing feature from Director. Get
identical screen and print layouts with no additional effort.
Take advantage of advanced page layout features, such as inline graphics, text wrapping, multiple columns, etc.
Support interactive PDF documents, including hyperlinks andQuickTime movies.
Enable PDF document editing from within Director.
Features dynamically adapt to end-user's Acrobat or Acrobat Readerapplication.
Search across multiple PDF documents with V12 Database Engine¨(www.v12dbe.com)
Handle password-protected PDf documents and most Acrobatplug-ins
Lingo interface to control PDF documents from Director (go to page,zoom, etc.)
Cross-platform compatible (MacOS and Win95/98.NT)
Shockwave-compatible. Verisign-approved.