Has OCRmyPDF already been run before?

[tcurdt]

Is there a way to tell whether a PDF was already run through OCRmyPDF?
...and/or whether it contains an OCR layer?

[jbarlow83]

Ocrmypdf updates the Creator and Producer metadata tags to indicate its version.

[tcurdt]

Great. Any suggestion on how to extract/check those (from a shell script)?

[tcurdt]

pdfinfo some.pdf | grep Creator seems to do it.