What are the differences between HTML5 and (pre-5) HTML? How can I make HTML-like forms in Markdown? What is difference between Hypertext and Markup in HTML?
You set the inches and the number of pixels in each of those inches. Photoshop removes or adds data to fit the number of pixels in each of the inches you specified. Note: The original image used in the examples below is 4x4 inches, 100 ppi, 400x400 pixels at 468.8 KB.
The following image is of the Adobe Photoshop > Image > Image Size dialog box (Adobe Photoshop CS5) as it might typically look when you load in a photo directly from your camera. In the top part, in the Pixel Dimensions section are the number of pixels that make up the horizontal and vertical dimensions of the image.