If you want to make an A4 poster in Photoshop, there are a few things you need to know. First, open up Photoshop and create a new document. You can choose any size you like, but I recommend A4 because it’s the standard size for posters. Next, select the Rectangular Marquee Tool (M) and draw a rectangle around the outside of your document. Make sure that the rectangle is big enough so that your poster will fit on one side of the paper. Now, select the Text Tool (T) and type in whatever text you want on your poster. I recommend using a font that’s easy to read, like Arial or Helvetica. Finally, use the Gradient Tool (G) to add some color to your text. I used a light blue gradient for my example, but you can use whatever color you like. ..
