In Photoshop

Resizing images for different use cases can be tedious, especially when you need to resize multiple images. If you are submitting photos or using them on a website, you need to quickly change the pixel dimensions of these images. Fortunately, photo editing programs like Adobe Photoshop can help you resize batch images to get fast and accurate results.

In this article, we will show you how to resize multiple images at once using Adobe Photoshop. Of course, you need to install Photoshop before you can follow this tutorial. If you don’t have one, you can get Photoshop from the Adobe official website.

Choose a Multiple images Resize Method

Photoshop provides two methods to batch resize images. In Photoshop, you can choose to use the following methods to batch resize images one photoshop’s built-in image processor and another your own batch resize action.

Using Photoshop’s image processor to make batch adjustments is easier. Still, it doesn’t always work properly, especially when you need to batch adjust images saved as different files or photos with different sizes. Instead, we recommend creating your own batch resizing Photoshop Action to control the collection resizing process fully. This method is more reliable in the long run, even if it takes more upfront effort to establish it.

Although it may seem daunting, the operation of creating batch resizes is actually very simple, and once completed, can save you time and effort.

How to resize your multiple images

Whether you decide to use Photoshop’s image processor or create your own Photoshop Action, you first need to crop the image into a folder for resizing. Remember to store this folder in an easy-to-remember location and remember a path. Then, make sure all photos have file types suitable for Photoshop!

This is the image folder we will resize:

Folder of Images

Please note that each of these four different images has a considerable difference in file size. Choosing such an image file will bring trouble to Photoshop’s built-in image processor. This is why we have to create our own custom size adjustment function.

But first, let’s try to resize these images using Photoshop image processors.

Using Photoshop Image Processor to Resize Multiple Images

After opening Adobe Photoshop, go to File>Script>Image Processor in the application toolbar.

Image processor

Selecting this option will open the following image processor menu.

Resize Multiple Images

It is now time to select the folder containing the images to be resized. Under 1) Select the image to be processed, press the Select Folder button to select your folder.

Before running the process, the menu should look like this:

Resize Multiple Images

Now let’s talk about the other settings available in the Image Processor dialog box. After selecting a folder, you can select all subfolders, including the data structure. If your image folder contains subfolders with other images and needs to be resized, please check the box.

Open the first image to apply the settings. This is useful for other processing but not useful for us to resize the image.

In the second option, 2) select “location” to save the processed image and create a second folder to save the resized image. This will avoid your renaming headaches and differentiation issues.

3) The file type option allows you to change the image size. Since all the images to be resized in the folder are 2×3 and vertical, we chose a resolution of 1000 x 1500 pixels. You can change these values ​​according to your preferences.

Also, choose the file type that best suits the original file and the resized image’s intended use. You may find that JPEG is the most effective.

Then, click to run the process on the image. After Photoshop is finished, you can find the resized photos in the new folder.

Resized photos

As you can see, after running the image processor, the resized image size will usually be smaller. However, you will also find that not all dimensions of every photo are the same.

This is common in image processing scripts because all original images are not perfect 2×3. Instead, the image processor tries to preserve the 2×3 nature to minimize image distortion.

Now, let us continue to try a better way to batch resize images!

Resize Multiple Images in Photoshop Using Custom Actions

If you have never created an action in Photoshop before, then you can treat it. Through the operation, you can save the process used on the image in the post-processing process. Just record the steps you usually perform and keep them to apply to future images.

Of course, when working with a single image, actions can help. For example, I often use frequency separation to deal with portraits. Take measures to automatically complete all the tedious work related to frequency separation, making the process easier and more enjoyable.

However, the action is best when used with the batch processing function of Photoshop. Before doing batch processing, let us learn how to create Photoshop actions.

Create an Action

First, open a new document in Photoshop. The content of the document is not important; you only need to access the Photoshop workspace. Then, go to Window >> Operations, or press Alt/Option + F9 to open the operation pane.

Your action pane will look like this:

Creating action

Try to use the default actions of Photoshop to get the feel of using them. Just select one and press the play button. Some actions have parameters, and some are just running.

To create a new action, press the + button on the bottom menu. This will prompt a pop-up menu to name your action. We Set the action name on “Resizing”.

Resize image

You can also assign color labels to actions from this dialog box. Choosing color labels for operations based on when they are usually applied during editing can help you stay organized. For example, an ordering system (where cool colors mark frontline edits and warm colors indicate final edits) creates a filing system that helps you quickly find the correct operation.

Next, press record. The “Record” button on the action panel will turn red when it is active, as shown below:

Resize image

When you create an action and add steps to it, you will see Photoshop record each new step into the action.

After recording, you can choose which steps to perform. To adjust the image size, go to Image >> Image Size, or press Alt / Option + Control / Command + I.

Also, please pay attention to the “Image>>Canvas Size” option. This option will change the size of the canvas, but not the size of the image. This means that you will add a background, but will not actually resize the image.

The “Canvas Size” action has been added to help you create prints that have the same borders on all sides. If you plan to do matte printing, you may want to use it to ensure that the image is not cut off by the mat during printing.

The correct “Image Size” menu is as follows:


You can work in pixels or inches and reset the DPI to any value you choose. For batch resizing, it is best to set “Resample” to “Auto”. Use the drop-down menu, or press Alt / Option + F1.

You need to make sure that the link between Width and Height is complete, as shown in the image above. This means that after resizing, the image will not be cropped or random background added.

In addition, choose width or height as your guide size. We chose a width of 1000 pixels. This means that when we use this operation, Photoshop will adjust the image width to 1000 pixels and change the height accordingly without changing the aspect ratio of the photo.

After completing these settings, press OK or Enter/Return. At this time, your operation panel will be updated.

Now, press the stop icon next to the red recording symbol to stop the recording operation. You can press the drop-down arrow next to “Image Size” in the operation panel to view your programmed content:

Resize Multiple Images

Now you can ready to use this action to resize all the images!

Applying Actions with Image Processing to Resize Multiple Images

After creating an action, how to apply it to the image folder to resize it in batch? By pressing the “Play” button on the action pane, you can apply the action you just created to any image you have opened.

To apply an operation to multiple images at once, first, go to File>Auto>Batch… in the Photoshop toolbar. This path takes you to the batch automated image processing function:

Resize Multiple Images

Below, you will find a photo of the batch automation process menu. There are several different panels, and each panel controls a different part of the process. According to your job, choose the options related to your task.

Resize Multiple Images

In the “Play” submenu panel, make sure to select an action. When we saved the resize operation as the default operation, you may have selected a different folder.

Second, use the “Source” submenu panel to select the folder you are using. This is the same test folder as the image processing test at the beginning of this guide. Choose options that are important to your process.

We recommend that you do not create actions that open images for you, as many of these actions may be corrupted or useless.

Third, use the “Target” sub-menu panel to select where to move the new, resized image. If you choose, you can override the “Save as…” command, but saving to a new folder is a cleaner method.

Finally, the file naming option allows you to accurately grasp the name of the new file. Now, you can use it as you like, but for batch renaming, using tools like Notepad++ is easier, more versatile, and cleaner.

Press OK and say hello to the folder of your resized images:

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Now, the size of all these images has been precisely adjusted to the specifications of the actions we created. After setting, this process will take less time, which means that it will be easy to resize the image in the future.

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