Suppose I have a directory full of many PDFs. In most of them, the text is completely search-able, which is the way I need them to be. But a few of them are just image scans, and they need to be OCR-ed.
Other then simply doing a batch OCR on the entire directory, is there a way to quickly identify which PDFs are the image-only ones that actually need to be OCR-ed?
I'm not a programmer, but a linux-friendly solution would be preferred.