If you want to install Adobes PDF iFilter 9 for 64-bit platforms you can find the iFilter itself as well as manuals describing the configuration steps here: Adobe PDF iFilter 9 for 64-bit platforms.
In the middle of the page you can download the PDFiFilter64installer.zip and at the bottom of the page there are manuals for SharePoint 2007, Exchange Server 2007 and SQL Server 2005.
Step 1 – Installing Adobe PDF iFilter 9 for 64-bit platforms
Download the PDFiFilter64installer.zip and run the PDFFilter64installer.msi.
Click through the wizard and select a folder for installation.
Step 2 – Adding the PDF extensions to the Shared Services Provider Search
After installing the Adobe PDF iFilter 9 you need to add the PDF extension to the Shared Services Provider Search which is not done by the install witard. You don’t need to edit the registry to create this extension.
After adding the extension using Central Administration the registry key is automatically created.
Step 3 – Verifying installation
Please open regedit to verify that the things you did work:
1. Click Start > Run and open “regedit”
2. Open the key \\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\OfficeServer\12.0\Search\
Applications\{siteGUID}\Gather\Portal_Content\Extensions\ExtensionList
3. Verify that there is a “string value” with pdf as its “value data”. This was created during installation of the Adobe PDF iFilter 9. If this is missing create it.
The result looks like this:
4. Open the key \\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\OfficeServer\12.0\Search\Setup\Filters\.pdf
5. Verify the values shown in the picture below. This was created during installation of the Adobe PDF iFilter 9.
6. Open the key \\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\OfficeServer\12.0\Search\
ContentIndexCommon\Filters\Extension\.pdf
7. Verify that there is a “REG_MULTI_SZ” with a value of “{E8978DA6-047F-4E3D-9C78-CDBE46041603}”. In my case I had to change the value to the correct one.
Step 4 – Restart services
Restart the following services:
net stop osearch
net start osearch
iisreset
Step 5 – PDF icon (optional)
Installing Adobe PDF iFilter 9 doesn’t install an icon for the pdf file extension so you have to do it by yourself. Download or create an icon of your choice (icpdf.gif) and copy it to the following folder:
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\IMAGES
Edit the docicon.xml and add the following mapping:
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\XML
<Mapping Key="pdf" Value="icpdf.gif">
Done! Now you have successfully installed the iFilter and after a full crawl (!) you can search within pdf files. If you have crawled a pdf file before and do an incremental crawl the content of the file won’t be crawled.