on macos, you can just use the built-in preview app. it's similarly not as advanced as acrobat, but a little better than firefox's pdf.js. i also like opening

on macos, you can just use the built-in preview app. it's similarly not as advanced as acrobat, but a little better than firefox's pdf.js. i also like opening pdf's in a separate app, as they're usually not part of the main "stream of thought" of the page from whence it came.