In February 2017, he won a bronze medal at the European Cup competition in Rome. In March, he participated in the Baku Grand Slam and reached fifth place. At the 2017 European Championship held in Warsaw in April, Paltchik reached seventh place. On June, a competition was held at the European Tour in Bucharest, Romania, where Paltchik won a bronze medal. Later that month, he won a gold medal in the Cancún Grand Prix, after winning in the semifinals the Brazilian former world champion, Luciano Correra, and beating Irish Benjamin Fletcher in the waza-ari. In the 2017 World Championships held in September in Budapest, Paltchik lost in the round-of-16 to Michael Korrel from Netherlands,World Championships who was ranked first in the world. In October, Paltchik won a bronze medal at the Abu Dhabi Grand Slam, after defeating Miklós Cirjenics from Hungary.