Preview APP Failure

Sometimes the PDF gets created in chunks of text that don’t necessarily flow along the sentence structure. When you try to highlight across one of those boundaries, it can flow to another block of text not inline with the first part of the selection.

If you create a PDF from a Pages, TextEdit, Word, etc. document, do you run into the same problem with highlighting it?

Yes, you should still be able to remove the highlighting.

I don't think I see what you are trying to describe in the screenshot. Are the purple-ish line segments what was highlighted? If it is those, that is a good example of how the PDF was constructed with different parts in different cells, and that may be why it extended across all of the adjacent parts to the bottom of the page.

I guess it doesn't matter what was highlighted, as I'm not sure how to remove them if the normal method doesn't work.