Every now and again I perform a Microsoft Windows Search of a folder. The results are incomplete as the folder may contain PDF files. The PDF files are not being searched for content. There are a few simple steps to determine if PDFs are being indexed.
Go to your Start Menu > Control Panel > View by: Small icons > Indexing Options > Advanced > File Types tab.
From the File Types tab, scroll to pdf PDF Filter and note that the error is “Registered iFilter is not found”.
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To correct this download the IFilter and install. There are a couple of free IFilters to chose from.
- Adobe PDF iFilter 64 11.0.01
- Adlib TET PDF IFilter 4.4 64-bit
Source(s)
http://www.documentsnap.com/how-to-fix-pdf-search-in-windows-7-64-bit/