Normally that means that the PDF is a scan and contains no actual text. Just an image of text.
Can you select individual words in the PDF sing the selection tool?
It looks like you are correct! They do appear to be scanned pages, but the icon that shows bfore the file name is Adobe & if I try to use the Open with option only Adobe is allowed. No wonder it confused me. Thank you for your help!
Yes. It can be a scan and still be an Adobe PDF file. You're welcome.