Download Adobe PDF IFilter 6.0 – http://www.adobe.com/support/downloads/detail.jsp?ftpID=2611
Download Microsoft Ifilter Pack- http://www.microsoft.com/downloads/details.aspx?FamilyId=60C92A37-719C-4077-B5C6-CAC34F4227CC&displaylang=en
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On the Shared Services Administration page, in the Search section, click Search settings.
On the Configure Search Settings page, in the Crawl Settings section, click File types.
On the Manage File Types page, click New File Type.
On the Add File Type page, in the File extension box, type the file name extension for the file type that you want to add (for example, type doc).
Note
Do not precede the file type with the period (.) character.
Click OK.
Repeat steps 3 through 5 for each file type that you want to add.
Added pdf and one
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1. Click Start, click Run, type regedit, and then click OK.
2. In Registry Editor, locate the following registry subkey:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftOffice Server12.0SearchSetupContentIndexCommonFiltersExtension
3. On the Edit menu, point to New, and then click Key.
4. Type .xlsb, and then press ENTER
5. Right-click the registry entry that you created, and then click Modify.
6. In the Value data box, copy and paste the following information, and then click OK:
{312AB530-ECC9-496E-AE0E-C9E6C5392499}
7. Repeat steps 2 through 6 to add the following subkeys:
Note This step is required only for the filters that are not already registered. Key Value Already registered?
.Docx {5A98B233-3C59-4B31-944C-0E560D85E6C3} Yes
.Pptm {DDFE337F-4987-4EC8-BDE3-133FA63D5D85} Yes
.Pptx {DDFE337F-4987-4EC8-BDE3-133FA63D5D85} Yes
.Xlsm {F90DFE0C-CBDF-41FF-8598-EDD8F222A2C8} Yes
.Xlsx {F90DFE0C-CBDF-41FF-8598-EDD8F222A2C8} Yes
.Xlsb {312AB530-ECC9-496E-AE0E-C9E6C5392499} Yes
.Zip {20E823C2-62F3-4638-96BD-90F4F6784EBC} No
.One {B8D12492-CE0F-40AD-83EA-099A03D493F1} No
.Vsd {FAEA5B46-761B-400E-B53E-E805A97A543E} No
.Vss {FAEA5B46-761B-400E-B53E-E805A97A543E} No
.Vst {FAEA5B46-761B-400E-B53E-E805A97A543E} No
.Vdx {FAEA5B46-761B-400E-B53E-E805A97A543E} No
.Vsx {FAEA5B46-761B-400E-B53E-E805A97A543E} No
.Vtx {FAEA5B46-761B-400E-B53E-E805A97A543E} No
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1. Click Start, click Run, type cmd, and then click OK.
2. At the command prompt, type net stop osearch, and then press ENTER.
3. At the command prompt, type net start osearch, and then press ENTER.
4. Type exit, and then press ENTER to exit the command prompt.
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Sample PDF can be found here: http://www.ics.net/Downloads/SharePointAdoptionFrameworkbrochure.pdf