Windows Search works great with SimpleIndex because all index data can be saved to the folder and file names as well as the file properties, and OCR text can be saved to hidden layers in PDF files. Windows Search will read all of these elements when building its index and will return any matching files when you search.
Using Windows Search on a file server allows for instantaneous searching across terabytes of documents and text for all of the users on your network.
IFilters allow Windows Search to search within file contents.
Here are three popular PDF IFilters that will enable text searching for PDF files:
- Foxit PDF IFilter (commercial)
- TET PDF IFilter (free/commercial)
- Adobe PDF IFilter (32-bit / 64-bit) (free)
If you have issues with PDF text searching in Windows 10, this article has detailed instructions for resolving PDF IFilter issues:
https://fixedit.itxpress.biz/2018/07/05/searching-pdfs-in-windows-10/