I don't know if it's a hack but I spent some time working for big four consultancies and would prep decks which needed logos with transparent backgrounds. You

I don't know if it's a hack but I spent some time working for big four consultancies and would prep decks which needed logos with transparent backgrounds. You can do a google search for '[company] logo' then click 'tools' then set 'colour' to 'transparent' and that will often throw the logo with a transparent background.