There are 2 types of PDF, native and image-based PDF. A native PDF allows users to search and edit freely, while an image-based PDF, which can be a scanned document or PDF file created from images, cannot be searchable or editable. In this case, we need to convert such a PDF to searchable PDF for searching or editing. For more details check out the link below. Source. 6 Best Searchable PDF Converter 2020 (Free, without Compress Pdf Online )
It is all set up like a pro PDF converter which can easily be used like a real one, and you can be assured that your PDF content is properly delivered to you, right after converting.