. " there are a mixture of different but equally awful problems with these pdfs!Some wish to force a download and there is a setting for that as Mary says; some wish the opposite - to open the pdf in the browser i.e. within a Moodle page (the latter is definitely my preference so as to keep the work-flow flowing, but I do not always get what I want).In all cases you are at the mercy of how the browser" . . .