How to Resize an Image in Photoshop: A Step-by-Step Tutorial

Scale & Resize Your Images to Perfection in Photoshop

Resizing images in Adobe Photoshop is a fundamental skill for photographers, designers, and digital enthusiasts. Whether you're adjusting for web standards, print dimensions, or simply scaling down a photo for social media, Photoshop offers precise control over the resizing process.

This blog post provides a clear, step-by-step guide to resizing images in Photoshop, ensuring your photos maintain their quality and meet your project requirements.

You can download Adobe Photoshop here.

Table of Contents

Understanding Image Resizing

Before diving into the resizing process, it's important to understand the distinction between resizing and resampling:

  • Resizing changes the print size without altering the pixel dimensions of the image.

  • Resampling alters the number of pixels in the image, affecting both its digital size and print dimensions.

Step-by-Step Guide to Resizing an Image

Step 1: Open Your Image

Begin by opening your image in Photoshop. Navigate to File > Open and select the image you wish to resize.

Step 2: Access the Image Size Dialog Box

Once your image is open, go to Image > Image Size to open the Image Size dialog box. This is where you'll control both the dimensions and resolution of your image.

Step 3: Adjust Image Dimensions

In the Image Size dialog box, you can change the width and height of your image. Ensure that the "Constrain Proportions" option (link icon) is checked to maintain the aspect ratio of your image as you adjust its size.

  • For web images, you might resize based on pixel dimensions.

  • For print images, you'll likely focus on physical dimensions (inches, centimeters) and resolution (DPI).

Step 4: Choose Resampling Method (If Needed)

If you're changing the pixel dimensions of your image, you'll need to resample it. Photoshop offers several resampling algorithms:

  • Preserve Details (enlargement): Best for increasing image size while maintaining quality.

  • Bicubic Sharper (reduction): Ideal for reducing image size with minimal quality loss.

Select a resampling method that best suits your needs. If you're unsure, Photoshop's default options are generally a good starting point.

Step 5: Adjust Resolution (For Print)

If you're preparing an image for print, set the resolution to the desired value. A standard value for high-quality prints is 300 DPI (dots per inch), but this can vary based on your specific printing needs.

Step 6: Review and Apply

Before applying the changes, review your settings to ensure they meet your requirements. Click "OK" to resize your image.

Step 7: Save Your Resized Image

After resizing, save your image by going to File > Save As. It's a good practice to save the resized image as a new file to preserve the original.

Tips for High-Quality Resizing

  • Preserve Originals: Always work on a copy of your original image to avoid irreversible changes.

  • Aspect Ratio: Keep the "Constrain Proportions" option enabled to prevent distortion.

  • Image Quality: When reducing size, be mindful of image quality. Excessive downsizing can lead to loss of detail.


Resizing images in Photoshop is a straightforward process that can significantly impact the effectiveness of your visual content. Whether for print, web, or personal use, understanding how to properly resize images is essential for maintaining their quality and ensuring they serve their intended purpose.

By following these steps and utilizing Photoshop's powerful tools, you can resize images confidently for any project.

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