By default, "Search for
Text" won't work for PDF documents as Windows does not provide the
filter for PDFs. Filter DLLs allow a client to
extract text information from the persistent representation of the
contents and properties of a file. Adobe made available the
IFilter plug-in and available for download from Adobe
download page
Once you install this Filter, the
PersistentHandler for PDFs is set automatically set, powered
by it's DLL file named PDFFilt.dll (C:\Program Files\Adobe\PDF IFilter
5.0). The Adobe IFilter plug-in - ifilter50.exe is free and it's about
3.8MB and works flawlessly. You may need to register before downloading.
If the plug-in is already
installed and still not able to search for text in PDF documents, apply
this registry file:
Windows
Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.pdf\PersistentHandler]
@="{B7509D6F-85EE-11d0-AF7D-00C04FD8DC02}"
(The PersistentHandler for PDF is
{B7509D6F-85EE-11d0-AF7D-00C04FD8DC02})
More Information
To know what are Filter DLLs or why do you
require one?
Using the "A word or phrase in the file"
search criterion may not work