Change the pixel dimensions of images

Last updated on Oct 27, 2025

Learn how to resize your image by changing its pixel dimensions for web, mobile, or screen display. This affects the total pixels and file size.

Select Image > Image Size from the menu bar.

In the Image Size dialog box, ensure the Resample checkbox is selected.

Select your preferred measurement unit from the dropdown menu next to the Width and Height fields.

Enter new values in the Width and Height fields under Pixel Dimensions.

Select OK to apply the changes.

Note

Adobe Photoshop automatically selects a resampling method, but you can choose another option from the Resample dropdown to control how pixels are added or removed.