The stills showcase a wide variety of events from the conflict; some depict events strongly associated in the public imagination with the war - soldiers struggling through the mud, peering over the top of a trench and walking through the ruins of a French town.
Others show more light-hearted events; soldiers ice-skating in the middle of winter, dressing up in drag for a concert and celebrating the Chinese New Year.
"A lot of those details - people's eyes and their expression and the backgrounds and the landscapes - are lost in black and white compared to colour," Jeremy Diamond, executive director of the Vimy Foundation, told the BBC.
"It gives a great perspective of real events. They're suddenly the real faces of real people."
The Great War proved a seminal event in the history of Canada and Newfoundland – then a separate Dominion within the British Empire.
At the time Canada had a population of eight million people, of whom 625,000 fought for King and Empire.
Around 60,000 were killed and a further 173,000 were wounded.