Re: embedded borderless PDF browsing
embedded PDF viewing in a browser is nearly always IRRITATING. save the file, then read it with 'atril' or some other PDF reader [preferably one that's not built with MONO or ".NOT"].
[I always "shut that crap off" along with a few other irritating settings - but if I can NOT shut it off, that application will NEVER be used by ME]
this is why everything in a browser needs to be CUSTOMIZE-ABLE since there's probably enough people that disagree with MY preferences that they actually WANT viewing PDF contents in an iframe. There are also people who like the 2D FLATSO, unfortunately. Well, they all need to be SETTINGS, so that EVERY customer is happy [not just the fanbois].