Convert images file into searchable pdf in .net

  I am convert all images file to pdf file,but i need some more facility,like images have some words,so after convert images to pdf file,i need to search the word form pdf,but currently not show any result.

Note: in .Net ,search word in output pdf file 

Pls provide sample code.here i attach sample image file convert as pdf file

pls reply asap

  Regards

      Aravind