He made his professional debut in a 2–0 home win over Botev Plovdiv on 18 April 2007, coming on as a substitute for Tiago Silva.

On 19 February 2011, Vidanov was loaned out to the Romanian club Rapid București with an option for purchase at the end of the 2010–11 Liga I season.

Vidanov's contract with Zagłębie expired at the end of the 2013–14 season and he left the club as a free agent.

On 26 October 2014, Vidanov signed a one-year contract with Italian Serie B club Trapani Calcio after successfully completing a trial period.

[5] On 12 August 2009, Vidanov made his debut for the senior team in a friendly match against Latvia after coming on as a substitute for Blagoy Georgiev in the 75th minute.