file manager/displayer which can make distinction between searchable/non searchable PDF files?

Is there a tool (like a file manager or file displayer) in the market, that is able to set a marker so that the user is able to distinct searchable / non searchable PDF files from eachother?

Explanation:
I have lots of PDF files, some of them are searchable, some not.
I want to get an overview of searchables/non searcables, not by opening each file manually and check if its searchable.

The main goal behind this question is that I have lots of pdf files and I want to make them all searchable but to do that I first need to have an overview of which pdf files are already searchable and which not.

Is there any tool which can help me with this?

Thanks,
Mathijs