Roll Out Plan for PDF Configuration in SharePoint 2007 64Bit Environment

 How to add an icon to Windows SharePoint Services to represent Adobe PDF documents that are stored in document libraries

firstly, download adobe icons (small & large) http://www.adobe.com/misc/linking.html

1. Navigate to C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\Template\Images
2. Copy in the PDF icon. Rename it to "pdficon.gif".
3. Navigate to C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\Template\xml
4. Locate the Docicon.xml file open with an xml editor.
5. Within the ByExtension tag add a new Mapping tag in alphabetical order with the following properties.

6. <Mapping Key="pdf" Value="pdficon.gif" />

7. Save the file. The Value needs to be the same as the icon you saved in images. Your file should look something like this.
   
   
   
   
   

   Extract from Docicon.xml showing pdf icon properties
   
8. Restart IIS. 
9. Check a document library you should now see a pdf icon next to a pdf document.