1. Make a cultural billboard with PPT. First, open PPT, set the size of cultural billboards in the page settings in Design, and decide to design cultural billboards and save them. Save as PDF file.

2. Pull the PDF file into Photoshop, and a dialog box will pop up. Select the media box with a resolution of 200 after cropping, and then press OK. As shown below: After opening, select "File" and save it as a jpg image format. That's enough.

3. Display boards can be designed in 3.PPT, but they can't be sprayed. You have to export the picture format. Save it in PDF and Photoshop, so that the picture is clearer. It is best to make exhibition boards or use professional Photoshop software to design, so that the cultural kanban will be done.