http://support.microsoft.com/kb/832809

Step 1 – Download Adobe PDF IFilter 5.0 from the following Adobe Web site: http://www.adobe.com/support/downloads/detail.jsp?ftpID=1276 (http://www.adobe.com/support/downloads/detail.jsp?ftpID=1276) Step 2 - Stop the IIS Admin service. To do this, follow these steps:

  • Click Start, point to Administrative Tools, and then click Services.
  • Right-click IIS Admin Service, and then click Stop.

Step 2 – Run the Adobe PDF IFilter 5.0 Setup program to install the filter on the server.

Step 3 – Register the Adobe PDF IFilter. To do this, follow these steps:

  • Click Start, and then click Run.
  • In the Open box, type cmd, and then click OK.
  • Switch to the folder that contains the Adobe PDF Filter 5.0 files. For example, switch to the following folder: Drive:\Program Files\Adobe\PDF IFilter 5.0
  • Type regsvr32.exe pdffilt.dll, and then press ENTER.
  • If you receive a message that states that the operation was successful, click OK .
  • Type exit, and then press ENTER to exit the command prompt.

Step 4 - Copy the .gif file that you want to use for the icon to the following folder on the server, as appropriate for your situation:

  • SharePoint Portal Server 2003 – Drive:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\60\Template\Images
  • SharePoint Server 2007- Drive:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\Template\Images

Step 5 – Edit the Docicon.xml file to include the .pdf extension. To do this, follow these steps:

  • Start Notepad, and then open the Docicon.xml file. The Docicon.xml file is located in one of the following folders on the server:  SharePoint Portal Server 2003 – Drive:\Program Files\Common Files\Microsoft Shared\Web server extensions\60\Template\Xml SharePoint Server 2007- Drive:\Program Files\Common Files\Microsoft Shared\Web server extensions\12\Template\Xml
  • Add an entry for the .pdf extension. For example, add a line that is similar to the following to the Docicon.xml file, where NameofIconFile is the name of the .gif file: <Mapping Key=”pdf” Value=”NameofIconFile.gif”/>
  • On the File menu, click Save, and then quit Notepad.

Step 6 – Restart the server.

Step 7 – Add the .pdf file type to the content index. To do this, follow these steps:

  • Connect to the portal site, and then click Site Settings.
  • On the Site Settings page, click Configure search and indexing under Search Settings and Indexed Content.
  • On the Configure Search and Indexing page, click Include file types under General Content Settings and Indexing Status.
  • On the Specify File Types to Include page, click New File Type.
  • On the Add File Type page, type pdf in the File extension box, and then click OK.

Step 8 – Update the context indexes for portal content and for non-portal content. To do this, follow these steps:

  • On the Site Settings page of the portal site, click Configure search and indexing under Search Settings and Indexed Content.
  • On the Configure search and indexing page, click Manage content indexes under Content Indexes.
  • On the Manage Content Indexes page, click the down arrow next to the name of the index that you want to update, and then click Start Full Update.