There are more than 200 kinds of professional graphic design software. Many advertising companies mainly use 1, Photoshop2, Illustrator3, CorelDRAW4 and PageMakerPS, which have the most powerful functions, but mainly deal with bitmap images, with the advantages of making, beautifying, synthesizing, many special effects and simple animation! AI and core are mainly used for drawing, making vector lines, graphs or images. Let me explain here: Bitmaps and vector maps: Bitmaps are composed of pixels, that is, the number of small squares in each cell, so there are clear limitations, that is, the more small squares in a cell, the higher the pixels, the higher the definition, and vice versa! A vector diagram consists of lines. As we all know, straight lines extend infinitely in both directions, so no matter how big you zoom in or do, the vector is clear (in fact, it is unclear because there is no ambiguity). PM is mainly used for text typesetting, which is rarely used by advertising companies, and I don't understand it! If you want to make an excellent and beautiful picture or image, both kinds of software will be used. PS is used for image processing, and core or AI is used for graphic combination typesetting, but CORE has been used more and more in recent months! Because many times core typesetting is really more convenient and practical than AI! Commonly used graphic design software can be used to design advertising leaflets. As long as the picture can ensure the clarity needed for printing. If it is printing, the resolution should be set higher, with a minimum of 300. Software, you can use Adobeillustrator, photoshop, cad for ps. Photoshop is used to make vector diagrams, which are generally used to make basemaps or something. If you want to arrange the text, you still need coreldraw and Illustrator. The drawings made by these two vector plane softwares can be infinitely enlarged, and the printed results are clear. Illustrator and photoshop are the same developer, so they can link. Illustrator has a disadvantage, that is, when making layout, the restrictions are relatively small, such as drawings of more than ten meters or tens of meters, so coreldraw is used. Coreldraw has no layout size limit. I know and can say so much. I hope I can adopt.