Pejac, a Spanish painter and street artist, was born in 1977 in Santander, Cantabria, Spain. He pursued his education in Fine Arts first in Salamanca and later in Barcelona. In 2001, Pejac continued his studies in Italy at the Accademia di Belle Arti di Milano. Presently, the artist resides in Santander.

Pejac's initial foray into street art occurred during his university years in Italy, where he grew disillusioned with the attitudes of his art instructors. Reacting against their elitist views, he resolved to create art accessible to all. Around 2000, Pejac commenced his work on the streets of Milan, aiming to bring art to those unlikely to visit traditional museums. Thus, Silvestre Santiago transitioned into Pejac.

The artist predominantly employs black to craft silhouetted figures and shadows, occasionally incorporating splashes of color to present them in a clever and poetic manner, depicting both playful and serious scenes. From miniature window sketches to expansive outdoor pieces and reproductions of classical masterpieces, Pejac demonstrates his remarkable skill as an artist whose works consistently address sensitive social themes and contemporary issues like peace and global warming. He is also acclaimed for his remarkable ability to integrate his outdoor artwork seamlessly into its surroundings, conveying a powerful message. Among his most renowned works is a depiction of the world map draining into a sewer, where the urban landscape becomes an integral part of the artwork, creating a thought-provoking site-specific installation.

Pejac's portfolio includes remarkable replicas and reinterpretations of classical masterpieces by artists such as Eugène Delacroix, Katsushika Hokusai, Edvard Munch, and Alberto Giacometti. One of his most notable projects involves a reinterpretation of Claude Monet's iconic Impression, Sunrise (1872), painted on the rusted hull of an abandoned ship on the shores of Cantabria, Spain. Depending on the tide, a portion of the painting is submerged underwater, with the ocean itself unveiling and concealing the artwork.