Q: Why does the PDF file I created not allow text searching?
In general, all PDF files are treated as image files which do not support text searching. Searchable PDF files add a corresponding text layer to the file which can be used to conduct text searching.
Since regular image only PDF files and Searchable PDF files share the same file extension ‘PDF’, the software that generates the PDF file must support creating Searchable PDF files. You need to pay attention to the functions and specifications of your PDF creating application.