@simon This specific PDF is not tagged for accessibility, and is literally unreadable with NVDA plus Acrobat Reader on Windows. For instance, here's an excerpt of what I'm hearing:

> SQLhasbeenextremelysuccessfulasthedefactostandardlanguageforworkingwithdata.Virtuallyallmainstreamdatabase-like systemsuseSQLastheirprimaryquerylanguage.ButSQLisan oldlanguagewithsignificantdesignproblems,makingitdifficultto learn,difficulttouse,