After graduating from Döbling Gymnasium in 1927, Drucker found few opportunities for employment in post-World War I Vienna, so he moved to Hamburg, Germany, first working as an apprentice at an established cotton trading company, then as a journalist, writing for "Der Österreichische Volkswirt" ("The Austrian Economist"). Drucker then moved to Frankfurt, where he took a job at the Daily "Frankfurter General-Anzeiger". While in Frankfurt, he also earned a doctorate in international law and public law from the Goethe University Frankfurt in 1931.