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How to Resize an Image in Photoshop

Resizing an image in Photoshop is one of the most common tasks you might encounter, whether you’re preparing images for the web, printing, or simply adjusting the dimensions to meet a specific need. Here’s a detailed step-by-step guide to help you master the process of resizing an image without losing quality.

Step 1: Open Your Image

  1. Launch Photoshop on your computer.
  2. Navigate to the File menu at the top left corner and click Open.
  3. Browse to the image you want to resize, select it, and click Open. Your image will now appear on the canvas.

Step 2: Access the Image Size Menu

Once your image is open, follow these steps:

  1. Go to the Image Menu: At the top of the screen, find the Image tab, and in the drop-down menu, select Image Size. You can also press Alt + Ctrl + I (Windows) or Option + Command + I (Mac) as a shortcut.

This will bring up the Image Size dialog box, which displays the current dimensions of your image.

Step 3: Set Your Desired Dimensions

In the Image Size dialog box, you’ll see several options. Let’s break down what each one does:

  • Width & Height: These are the actual dimensions of your image. You can change the units (e.g., pixels, inches, centimeters) using the drop-down menu next to each value.
  • Constrain Proportions: Ensure that the little chain link icon between Width and Height is activated. This will keep the aspect ratio of your image intact when resizing, so it doesn’t get distorted.
  • Resolution: If you’re resizing for the web, 72 pixels/inch is standard. For print, you’ll want a higher resolution, like 300 pixels/inch.

Now, simply type in the new Width or Height (Photoshop will automatically adjust the other value to maintain the aspect ratio if Constrain Proportions is on).

Step 4: Choose Resampling Method

At the bottom of the Image Size dialog box, you’ll see a drop-down menu labeled Resample. This option determines how Photoshop adds or removes pixels when resizing your image.

Here are the most common resampling options:

  • Automatic: Photoshop chooses the best resampling method for the situation.
  • Bicubic Sharper (reduction): Best for downsizing, as it helps maintain sharpness.
  • Bicubic Smoother (enlargement): Best for enlarging an image, as it helps avoid pixelation.
  • Preserve Details (enlargement): Ideal when increasing the size of an image, as it preserves detail better than other methods.

Select the option that suits your resizing needs, then click OK.

Step 5: Save Your Resized Image

Once you’re satisfied with the new size, it’s time to save your image. Follow these steps:

  1. Go to File > Save As.
  2. Choose your desired file format. If you plan to use the image online, JPEG or PNG are great options. For print, consider saving as TIFF or PSD (Photoshop’s native format).
  3. Name your file and click Save.

If you’re saving as a JPEG, Photoshop will prompt you with a quality slider. For the best balance between quality and file size, set it between 8 and 12.

Bonus Tip: Maintain Quality While Resizing

When resizing images, especially when enlarging them, the quality can degrade if too many pixels are added. Try to avoid resizing small images to much larger dimensions. If necessary, work with the highest resolution image you have access to for the best results.


That’s all there is to resizing an image in Photoshop! With practice, you’ll be able to quickly adjust the size of your images for any project without sacrificing quality.

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