In 1903, Pekmezi was elected to direct the Albanian language cathedra at the Oriental University of Vienna.[1] He founded the cultural-patriotic society Dija (Knowledge) in 1904 with Hile Mosi, Kolë Rrota and other Albanian intellectuals. In the late Ottoman period, Austria-Hungary subsidized two of Pekmezi's works: Albanesische Bibliographie and Albanianische Grammatik.[2]
During the autumn of 1913, Pekmezi worked for the border commission in southern Albania and in March 1914 was appointed dragoman (interpreter/secretary) at the new Austro–Hungarian mission in Durrës. In 1916, he was a leading member of the Albanian Literary Commission in Shkodër under the auspices of Austro–Hungary. In April 1917 he accompanied and facilitated the delegation of Albanian chieftains and leaders who visited Vienna and met with the Imperial authorities with an invitation by Ignaz Freiherr Trollmann.[3]
From 1920 to 1924 and 1926 to 1928, he served as Albanian consul in Austria. In 1924 he published a new edition of Thimi Mitko's Bleta Shqipëtare using the modern Albanian alphabet.[4] Pekmezi's work became at that time the best-known edition of Bleta Shqipëtare.
From 1928 until his death, he taught Albanian at the University of Vienna.[5] The Albanology branch of the University of Vienna bears his name.[6]
A high school located in Rruga Driloni, Pogradec, Albania is named Gjergj Pekmezi High School.[7]
Vorläufiger Bericht über das Studium des albanesischen Dialekts von Elbasan (Preliminary Report on the Study of the Albanian Dialect of Elbasan), Vienna, 1901
Grammatik der albanesischen Sprache (Grammar of the Albanian Language), Vienna, 1908
Bleta shqypëtare e Thimi Mitkos (The Albanian Bee of Thimi Mitko), Vienna, 1924
Bibliographija shqype/Albanesische Bibliographie (Albanian Bibliography), as coauthor, Vienna, 1909
Sprachführer zur schnellen Erlernung der albanischen Sprache (Manual for Learning the Albanian Language Quickly), Vienna, 1913
Lehr und Lesebuch des Albanischen (Manual and Reader of Albanian), as coauthor with Maximilian Lambertz, Vienna, 1913