I have Adobe Acrobat XI Pro version 11.0.10. For a long time, searches in Windows Explorer (Windows 7 Professional, 64 bit platform) successfully found text inside PDF documents, but this has stopped working in the last 3-4 weeks despite NO Windows updates or Adobe Acrobat updates.
After searching the web and the Adobe website, I downloaded PDF iFilter 64 11.0.01 (from the Adobe website
http://supportdownloads.adobe.com/thankyou.jsp?ftpID=5542&fileID=5550). Have followed all the instructions and it hasn't fixed my problem.
Have followed the instructions re shutting down my PC, restarting it, changing Control Panel System Environment Variables (and I shut down and restarted again). There are a number of problems with the above:
(1) Adobe says this is "PDF iFilter 64 11.0.01" BUT in the ReadMe.txt file, it says to enter "Adobe PDF iFilter 9 for 64-bit platforms\bin\" in the Sys Env Variables box. This means that that the system cannot FIND "Adobe PDF iFilter 9 ...." because the folder is ACTUALLY called "Adobe PDF iFilter 11 for 64-bit platforms". Another nuisance !! It would help if Adobe provided the correct instructions !! I did try changing the Sys Env Variables box to Adobe PDF iFilter 11 for 64-bit platforms\bin\, but this didn't help. The PDFFilter.dll file says it is v 126.96.36.199.
(2) the Adobe page containing the file for download says it's for Windows Platform - but does NOT says which platforms. What a nuisance. Therefore I was stuck with doing the download only to find it's not for my particular Windows platform, after downloading and reading the ReadMe.txt file which says the PDF iFilter 11 downloads is only for Windows XP x64 and Vista x64 (+ 2 other platforms irrelevant to me). SO IT IS NOT FOR WINDOWS 7 PRO.
Please provide the URL / link for the Adobe PDF iFilter for WINDOWS 7 PROFESSIONAL PLATFORM.