Posters are large and small, and there are many sizes. The general width and height are 13cm× 18cm, 19cm×25cm, 42cm×57cm, 50cm×70cm, 60cm×90cm and 70cm× 100cm respectively.

In fact, you can also make an electronic poster from the Internet and type it out. You can use the compressed map website to make posters online. It doesn't matter if you don't PS. There are many templates to choose from.

1. Open the compressed map website and select the template center.

2. After entering the template center, click Print Poster Classification, and select the appropriate poster template under the classification.

3. After selection, click on the template to enter the template editing page, click on the text on the template to edit the text, click on the menu bar on the left to add the material provided by the compressed picture to the template or upload your own material, and click Save Local to download the picture to the local after the design is completed.