There are a few reasons why this may occur:
- If you use Mac OS Leopard you will need to open the viewer before opening the document you wish to view. This is due to the OS sandboxing new software to protect you from malicious programs.
- If the document size is over 12MB it may not open in the Viewer. If this is the case, please consult your publisher.
- The viewer application may not have installed successfully. Please re-install.
- The document may be corrupted or incomplete in size. Please check the file size with the publisher.