The document provides instructions for creating a poster in Photoshop using international paper sizes and inserting images. It describes how to open Photoshop, select an international paper size, insert and resize images, apply filters and borders to images, add text, and save the poster as a JPG file. Key steps include going to File > New to select a paper size from A0 to A10, going to File > Open to insert images, resizing and applying filters to images, selecting images and going to Modify > Border to add borders, and using the typing tool to add text before saving the final poster.