When I opened a pdf recently, I was asked whether I wanted to convert pages. I didn't know what this meant, but did so with two pages. I then saw that the conversion allowed me to highlight text as I would in any document (in straight lines, following the text), rather than use the painting option which moves all over the ighlight portion all over the page like a paintbrush. I really liked the feature, but I haven't been able to figure out how to format the rest of the pdf that way. I would appreciate someone explaining to me how to do this. It was so convenient, and I haven't been able to figure out how to initiate it on my own. Thank you.