If you drag a PDF to the Win2PDF Desktop icon, or select a PDF from the open window when launching the Win2PDF Desktop application, the following options will be displayed under the "File" menu:
Win2PDF Desktop - Make PDF Searchable
After selecting "Export -> PDF - Searchable (OCR)", you will be prompted to save the searchable PDF file. If the option is grayed out, you need to download the "Win2PDF Desktop with OCR" setup program from:
Win2PDF will recognize text from images and graphics using Optical Character Recognition (OCR), and will save the text information in an invisible text layer to make the PDF searchable.
This is also available using the MAKESEARCHABLE command line.
This feature requires a licensed version of Win2PDF. Contact firstname.lastname@example.org for a time limited evaluation license.