How to resize multiple images at once in Windows 7, 8 and 10

This tutorial will show you step by step how to resize multiple images at once in Windows 7, 8 and 10 in 6 different ways.

You can also batch (bulk) resize images in Windows without using any third-party software.

This tutorial will show you how to change the size (dimensions) and reduce the file size of your images (photos).

And:

It will work for all common image formats, such as JPEG (JPG), PNG, GIF, and depending on the software also other formats, such as BMP and TIFF.

How to batch (bulk) resize images in Windows without third-party software

Tip: It's easier if all the images are in one folder.

1. Right-click on your desktop.

2. Go with the mouse cursor (pointer) to New and then click on Folder.

create a new folder in windows

3. Enter a name for the new folder (e.g., resized photos, resized images, etc.).

4. Go to the photos you want to resize.

5. Select all the pictures at once.

Two ways to select multiple images at once:

6. Right-click on the selected images.

7. Go with the mouse cursor (pointer) to Send to and then click on Mail recipient.

resize multiple photos in windows without software

An Attach Files window will appear.

8. Select a picture size (dimension), like 640 x 480, 800 x 600, 1024 x 768, or 1280 x 1024.

Choose a picture size

Note: No matter which size you choose, the aspect ratio of your images will be correct. For example, if you choose 800 x 600, then a photo with a size of 1280 x 720 will still get the correct aspect ratio of 800 x 450.

The aspect ratio of a picture describes the proportional relationship between the picture's width and its height. (1)

9. Click on Attach.

10. Windows will now try to open an email program like Outlook or Thunderbird and if you don't have an email program, then you will get an error message that says that there is no email program associated to perform the requested action, etc. It's okay, no problem because we don't need an email program. Do not click on OK and do not close this message window.

no email program associated windows error

11. Go to the Windows search bar.

Tip: In Windows 7, 8 and 8.1, you can find the search bar in the start menu and in Windows 10 it's located in the taskbar. In Windows 8, 8.1 and 10, you can also open the search function by pressing the [Windows] + [S] key on your keyboard.

12. Type %temp% into the Windows search bar.

open windows temp folder

13. Press Enter.

The Windows Temp folder will open and here you will find your resized pictures.

Note: If the search doesn't work or the Temp folder doesn't open, then follow the next few steps:

14. Click on Type located at the top of the Temp folder. This will sort all files by file type and will make all the images stand together.

order by file type option in windows explorer

Alternatively, you can also type the file extension of the images (e.g., .jpg, .png, .gif) in the search bar. This will make Windows Explorer show only images with the file extension.

search file extension of images in windows explorer

15. In the left sidebar, you click on the ❱ or ▷ icon next to Desktop so that the newly created folder is visible.

expand desktop in windows explorer

16. Drag the photos from the Temp folder to the new folder.

drag the resized pictures from windows temp folder to new folder

To drag, click with the left mouse button on the photo(s), hold down the left mouse button, drag the image(s) to the new folder and then release the left mouse button.

How to batch (bulk) resize images in Windows using FastStone Image Viewer

FastStone Image Viewer is a free image browser, converter, and editor.

You can download FastStone Image Viewer here.

1. Open FastStone Image Viewer.

2. In the top left section of FastStone Image Viewer, you go to the location on your computer where the images are stored that you want to resize.

go to the location of the images in faststone image viewer

3. Select all photos.

Two ways to select multiple images at once:

4. Click in the top menu on Tools and choose Batch Convert Selected Images.

batch convert selected images in faststone image viewer

A Batch Image Convert/Rename window will appear.

5. On the left side, you click next to Output Folder on the Browse button.

6. Select a folder on your PC where you want to save the new resized images. Or create a new folder and select the new folder.

7. Click on the OK button.

8. Check the checkbox next to Use Advanced Options.

use advanced options in faststone image viewer

An Advanced Options button will appear.

9. Click on the Advanced Options button.

An Advanced Options window will appear.

10. In the Resize tab, you check the checkbox next to Resize.

resize images option in faststone image viewer

11. Select a size (dimension).

You can set the new width and height manually or you can click on the Pick a Standard Size selection button and choose a standard size (e.g., 640 x 480).

select a size in faststone image viewer

Note: No matter which size you choose, the aspect ratio of your images will be correct. For example, if you choose 800 x 600, then a photo with a size of 1280 x 720 will still get the correct aspect ratio of 800 x 450.

The aspect ratio of a picture describes the proportional relationship between the picture's width and its height. (1)

12. Click on the OK button at the bottom.

13. Click on the Convert button at the bottom right.

FastStone Image Viewer will now resize all your images at once.

How to batch (bulk) resize images in Windows using PhotoFiltre

PhotoFiltre is a free, comprehensive photo editor.

You can download PhotoFiltre here.

1. Open PhotoFiltre.

2. Click on the Automate/Batch icon.

automate / batch icon in photofiltre

A Automate/Batch window will appear.

3. Click on the field below Source folder or click on the folders icon.

select source folder in photofiltre

4. Go to the location on your computer where the folder is stored that contains the images you want to resize.

5. Select the folder and click on the OK button.

Now you will see all the images appear in the Pictures field.

6. Click on the field below Output folder or click on the folders icon.

select output folder in photofiltre

7. Select a folder on your computer where you want to save the new resized images. Or create a new folder and select the new folder.

8. Click on the OK button.

9. Click on the Image tab.

10. Check the checkbox next to Image Size.

11. Select a size (dimension).

select a size in photofiltre

Note: You only need to select the desired width or height. For example, if you select a width of 320px and don't select a height (leave the default height), then the aspect ratio of your images will still be correct (e.g., 800 x 600, 800 x 450, 1024 x 768, etc.).

The aspect ratio of a picture describes the proportional relationship between the picture's width and its height. (1)

12. Click on the Action tab.

13. Click on the OK button at the bottom.

PhotoFiltre will now resize all your images at once.

How to batch (bulk) resize images in Windows using IrfanView

You can download IrfanView here.

1. Open IrfanView.

2. Click on File at the top left and choose Batch Conversion/Rename.

IrfanView Batch Conversion/Rename option

A Batch conversion window will appear.

3. In the top right section of IrfanView, you go to the folder that contains the images you want to resize.

4. Select all images.

5. Click on the Add button.

add images to batch conversion list in irfanview

6. Check the checkbox next to Use advanced options.

7. Click on the Advanced button.

advanced options for bulk resize images in irfanview

8. Check the checkbox next to Resize.

9. Enter a width or height, but not both.

resize settings in irfanview

Note: You only need to select the desired width or height. For example, if you select a width of 320px and don't select a height (leave the default height), then the aspect ratio of your images will still be correct (e.g., 800 x 600, 800 x 450, 1024 x 768, etc.).

The aspect ratio of a picture describes the proportional relationship between the picture's width and its height. (1)

10. Click on the OK button at the bottom.

11. At Output directory for result files located on the left side, you click on the Browse button.

12. Select a folder on your PC where you want to save the new resized images.

13. Click on OK.

14. Click on the Start Batch button at the bottom left.

IrfanView will now resize all your images at once.

How to batch (bulk) resize images in Windows using PhotoScape

You can download PhotoScape here.

1. Open PhotoScape.

2. Click on Batch Editor located in the top menu.

3. In the top left section of PhotoScape, you open the folder that contains the pictures you want to resize.

4. Select all photos.

open pictures folder in photoscape

5. Drag the selected photos to the Drop your photo here middle section of PhotoScape.

6. At Resize located on the right side, you click on the selection button and choose Adjust width or Adjust height.

adjust width or height of images in photoscape

7. Enter a width or a height.

Note: You only need to select the desired width or height. For example, if you select a width of 320px and don't select a height (leave the default height), then the aspect ratio of your images will still be correct (e.g., 800 x 600, 800 x 450, 1024 x 768, etc.).

The aspect ratio of a picture describes the proportional relationship between the picture's width and its height. (1)

8. Click on the Convert All button at the top right.

A Save window will appear.

9. At Location of saved files, you can view and change the location on your computer where PhotoScape will save the resized photos.

10. Click on the Save button at the top right.

PhotoScape will now resize all your images at once.

How to batch (bulk) resize images in Windows using GIMP

You can download GIMP here.

Note: GIMP doesn't have a built-in option for batch resizing of images.

But:

You can install a third-party script (plug-in) in GIMP to batch resize photos.

Install batch resize script

Note: You only need to install this script once.

1. Go to https://github.com/easytechguides/batch-smart-resize.

2. Click on the Clone or download button and choose Download ZIP.

download batch resize script for gimp

3. Unzip the batch-smart-resize-master.zip file.

4. Move the batch-smart-resize.scm file to your GIMP scripts folder (e.g., C:/Program Files/GIMP/share/gimp/2.0/scripts/).

You can find the location of the scripts folder in GIMP by going to Edit > Preferences > Folders > Scripts.

5. Open GIMP (if it's not already opened).

6. Click on Filters (top menu), go to Script-Fu and click on Refresh Scripts.

Resize images

1. Open GIMP.

2. Click on File (top left), go to Create and choose batch-smart-resize.

open the batch-smart-resize script in gimp

The Scrip-Fu: batch-smart-resize window will appear.

3. Click on the button next to Source Folder.

4. Select the folder that contains the images you want to resize.

5. Click on Open.

6. Click on the button next to Destination Folder.

7. Select the folder on your computer where you want to save the new resized images. Or create a new folder and select the new folder.

8. Click on Open.

9. At Output Type, you select an image format (e.g., JPG or PNG).

10. At Output Quality, you select a quality (e.g., 90, 100, etc.).

11. At Max Width, you enter the desired size (e.g., 1024, 800, etc.).

12. At Max Height, you enter the desired size (e.g., 1024, 800, etc.).

Note: You need to make sure that you enter a maximum size that's large enough. For example; your photos are taken in landscape mode and you want to give your photos a width of 800 pixels, then enter 800 at Max Width and 800 at Max Height. This way, you are sure that the maximum height is going to be large enough because the photos will be something like 800 x 600 or 800 x 450. The aspect ratio of your images will be fine (e.g., 800 x 600, 800 x 450, 1024 x 768, etc.)

The aspect ratio of a picture describes the proportional relationship between the picture's width and its height. (1)

13. Click on OK.

GIMP will now resize all your images at once.


Maybe you're also interested in:

How to resize multiple pictures at once in Windows without software

How to resize multiple images at once online


References:

DIYTechGuides: How to resize multiple images at once in Windows 10

CCM: PhotoFiltre - working with a batch of photos

YouTube: How to resize multiple images at once in Windows 10 (without extra software)

Wikipedia: Aspect ratio (image)