Poster Printing gc3dp
Note: If you download an image from the web, make sure it's high quality with 150-300 pixels per inch (PPI) so that depending on the poster's size, you will still have a sharp image. For example, a 20" x 30" size poster will have better image resolution using a 2560 x 1920 Megapixel (MP) photo or higher.
There are many programs you can use to create a poster, but PowerPoint, Adobe Photoshop, or Canva are great choices. You can find more information to support you here.