Power Automate - Create Searchable PDF with OCR failing to make pdf searchable

Hello,

I am trying to use Power Automate - "Create Searchable PDF with OCR" to make a PDF file searchable.

The original PDF is an A3 electrical schematic where elements are labeled, it would make easier to find components if they were text searchable. Like the picture below.

It seems that I might be taking the wrong approach. Please tell me if adobe has a solution to my problem