Ключевые слова: 3d illustration, a4, advertise, advertising, background, blank, blank trifold, booklet, brochure, business, design, empty, flyer, fold, folded, folder, layout, leaflet, marketing, mock up, mockup, page, paper, presentation, print, promotion, publication, sheet, space, template, three, tri, tri fold, trifold, unfolded, view, white,