when you open a pdf in drive thout adobe pdf reader, the all tools menu always starts too and is very disgusting because it give less space to the creen and is unconfortable to close every single moment you open a document, in the deskpot app is possible delete this in the menu throut edit preferences, but in the drive option is not posible because you cant edit preferecnes, please delete or give a option to not start the all tools when you open any document in drive pdf