Why would they use OCR? OCR takes an image and converts text in the image into editable and searchable data.

And no, it doesn't go through OCR when "being compressed into a PDF"

Simply wrapping an image into a PDF format does not inherently involve OCR. The image is embedded in the PDF without any text recognition, meaning the text within the image remains non-selectable and non-searchable.

Why would they use OCR? OCR takes an image and converts text in the image into editable and searchable data.