How to Resize Images Without Losing Quality

Step by step

1. 1 min

   Open the Image Size dialogue

   Launch Adobe Photoshop and open your target image file. Navigate to the top menu bar, select Image, then click Image Size. Alternatively, use the command shortcut to access the panel immediately.

   Note: Always work on a duplicate layer to preserve your original file.
2. 30 sec

   Enable constraint proportions

   Ensure the link icon between Width and Height is toggled to the active state. This locks the aspect ratio, preventing image distortion or stretching when modifying dimensions.

3. 1 min

   Select the correct resampling algorithm

   Locate the Resample dropdown menu at the bottom of the panel. Choose Bicubic Sharper (reduction) if you are downsizing, or Bicubic Smoother (enlargement) if you are increasing image size.

   Note: Bicubic Sharper is mathematically optimized to reduce aliasing during downscaling.
4. 1 min

   Define new output dimensions

   Enter your desired pixel values in the Width or Height fields. Verify that the resolution is set to 72 pixels/inch for web use, or 300 pixels/inch if the file is intended for professional print media.

5. 1 min

   Save the file using Export As

   Do not use Save As. Navigate to File, hover over Export, and select Export As. Select PNG or JPEG, set quality to 100%, and ensure Convert to sRGB is checked to maintain color accuracy across all displays.

   Note: Exporting preserves metadata while stripping unnecessary heavy data.