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How do I change the size of a PNG in Photoshop?

Published in Photoshop Editing 3 mins read

You can change the size of a PNG image in Photoshop by using the "Image Size" dialog box. Here's a step-by-step guide:

  1. Open your PNG image: In Photoshop, go to File > Open and select your PNG file.

  2. Access the Image Size dialog: Navigate to Image > Image Size in the top menu. This will open the Image Size window.

  3. Set your desired dimensions:

    • Width and Height: Enter the new width and height you want for your PNG. You can choose units like pixels, inches, centimeters, etc., from the dropdown menus next to the width and height fields.

    • Constrain Proportions: Ensure the "Constrain Proportions" box is checked. This maintains the aspect ratio of your image, preventing distortion. If you uncheck it, you can independently adjust the width and height, potentially stretching or squashing the image.

    • Resample: The "Resample" option determines how Photoshop adds or removes pixels to resize the image. Choose a resampling method that suits your needs. Here are a few common options:

      • Automatic: Photoshop chooses the best method.
      • Bicubic Automatic: Generally a good default for most resizing tasks.
      • Bicubic Smoother: Best for enlarging images.
      • Bicubic Sharper: Best for reducing images.
      • Nearest Neighbor: Good for preserving hard edges when resizing pixel art.
      • Preserve Details (enlargement): Best for enlarging images while preserving details.

  4. Resolution (Optional): If you're working with a PNG for print, you might want to adjust the resolution. Common print resolutions are 300 DPI (dots per inch) for high-quality prints or 72 DPI for web use. Changing the resolution without resampling will change the physical dimensions of the image (e.g., in inches), but not the pixel dimensions.

  5. Click "OK": Once you've set your desired dimensions and resampling method, click "OK" to apply the changes.

  6. Save your resized PNG: Go to File > Save As and choose PNG as the file format. Select your desired save options and click "Save". Be mindful of saving over your original if you want to keep it! Consider adding a suffix like "_resized" to the filename.

By following these steps, you can easily change the size of a PNG image in Photoshop while maintaining the desired quality and aspect ratio.

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