Ключевые слова: 3d, art, background, binder, black, blank, book, business, clean, concept, copybook, cover, cut, design, diary, document, education, empty, icon, illustration, isolated, long, message, mockup, note, notebook, notepad, object, office, organizer, origami, pad, page, paper, paperart, papercut, purple, school, shadow, sheet, spiral, template, textbook, volumetric, workbook, write,