Out of the box, Microsoft SharePoint will not index full text PDFs. There are several steps to enable PDF indexing, and also make sure you see Adobe icons within the SharePoint viewer.
You will need to grab the Acrobat PDF Picture. This will display the PDF icon next to PDF Documents in Microsoft SharePoint. You can download it from http://www.adobe.com/images/pdficon_small.gif
You will now need to add the PDF file type to the Extensions List for SharePoint search by editing the registry
Start the registry editor, by going to Run, and typing regedit
Open up HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\12.0\Search\Applications\{Random GUID}\Gather\Search\Extensions\ExtensionList
You will need to Add “pdf” to the list as a new String Value. Find the highest in the list, typically 37, and create a new key with the next number (38) as the key with the value “pdf”
Add the Acrobat PDF icon you downloaded above to the Microsoft SharePoint templates directory. Copy the icon called pdficon_small.gif into the folder “%programfiles%\Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\IMAGES”.
Now you will have to bind the Acrobat PDF picture to the PDF file type
Open the “%programfiles%\Common Files\Microsoft Shared\Web Server Extensions \12 \TEMPLATE\XML\DOCICON.XML file
Locate the <DocIcons.ByExtension> section of the file.
Add the mapping below:
<mapping Key=”pdf” Value=”pdficon_small.gif” OpenControl=”" />
Change the iFilter mapping in registry
Go to start, and run regedit
Open the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\12.0\Search\Setup\ContentIndexCommon\Filters\Extension\
Add (or modify) the .pdf key
Add a Multi-String value with value {E8978DA6-047F-4E3D-9C78-CDBE46041603} or modify if another GUID value already exists.
Open the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\12.0\Search\Setup\ContentIndexCommon\Filters\Extension\
Add (or modify) the .pdf key
Add a Multi-String value with value {4C904448-74A9-11D0-AF6E-00C04FD8DC02}
or modify if another GUID value already exists.
You will need to add the Adobe Reader folder to the environment path variable
Open the System Icon in the Control Panel
Open the Advanced tab
Go to the Environment variables
Edit the Path variable
Add your Reader folder to the Path list, e.g. C:\Program Files\Adobe\Reader 9.0\Reader
Restart the Search service by restarting your server or executing the following commands:
