There are a few ways to measure in Photoshop, but the most common is to use the ruler tool. To do this, first make sure that the rulers are visible by clicking on the rulers icon at the top of the screen. Then, drag a horizontal or vertical line across your image to create a baseline measurement. Next, use the measurements tool (located in the toolbar) to measure different areas of your image and enter those measurements into the fields next to it. For example, if you want to know how wide an image is in pixels, enter 400 in the Width field and 600 in the Height field. ..
