The German detectives were conducting an undercover on-line investigation when they came upon a suspicious file server in Edmonton.
The Internet tip led to the arrest of 21-year-old Samuel Settle. He has been accused of possessing and distributing child pornography and will appear in Edmonton provincial court July 22.
A computer system containing photographs and video clips of children has been seized.
Last month a Calgary man was arrested after a similar Internet investigation involving German police.