How to change File size and Resolution in Paint & Paint 3D

You can change the file size and resolution using Paint and Paint 3D in Windows 11/10. In this post, we will show you how to do this. At times, you might need to remove the background of an image or reduce the file size or resolution of a photograph to comply with an online application’s restriction. Instead of purchasing a paid tool, you can use the built-in option or tool of Windows 11/10 – Microsoft Paint or use a free Paint 3D app (from Microsoft). Both tools can help you edit images.

How to change file size using MS Paint

To change file size using the Paint app in Windows 11/10, follow these steps-

1. Open the Paint app on your computer.
2. Open the image in the Paint app.
3. Go to the File option.
4. Click the Save as button.
5. Select JPEG from Save as type.
6. Choose a location to save the file.
7. Click the Save button.

To begin, open the Paint app on your computer. You can use the taskbar search box to open it.

After that, press the Ctrl+O hotkey (or use the Open option in the File menu) and select the image to open it in the Paint app.

Next, click on the File menu and access the Save as option.

Now, select the JPEG picture option from the Save as drop-down menu.  Following that, you need to choose a location where you want to save the file.

Now, check the size of the new file and compare it with the old one. While testing, a 15.1 KB file became 11.9 KB within moments, which is around a 21% reduction.

If you open the image in Paint and save a copy of the file, the size gets reduced automatically. However, if you have an image containing some text only, you might not find a significant reduction.

How to change file size using Paint 3D

To change file size in Paint 3D, follow these steps-

1. Open the Paint 3D app on your PC.
2. Open the image in Paint 3D.
3. Click the Menu button.
4. Select Save as.
5. Choose the Image as the file format.
6. Select a location to save the file.
7. Choose 2D-JPEG from Save as type.
8. Click the Save button.

Open the Paint 3D app using the Taskbar search. Next, open the image in this app.

Click the Menu button that is visible on the top-left corner and select Save as on the next screen.

Next, choose Image as the file format.

You should see a familiar screen from where you have to select a location to save the file, select 2D-JPEG from Save as type, and click the Save button.

Then, you can compare the size of the new file with the old one. While testing, the 15.1 KB file became 9.7 KB, which is almost a 36% reduction.

Related: How to use Microsoft Paint on Windows PC

How to change file resolution in Paint

To change the file resolution in Paint on a Windows 11/10 PC, follow these steps:

1. Open the image in the Paint app.
2. Click the Resize and skew option in the Image menu.
3. Select a new resolution.
4. Click the OK button.
5. Press Ctrl+S to save the image.

Let’s delve into the steps in detail.

At first, open an image in the Paint app. For that, you need to open the Paint app first and then; you can use the Ctrl+O shortcut to open the picture in the app. Now, look for the Image menu (on the top left part) available just before the Selection menu. There, click on the Resize and skew option or icon.

A Resize and skew box will open. There are two ways to change the resolution. You can increase or decrease the dimension by percentage or pixel. Choose an option and set the resolution as per your requirements. You can also maintain the aspect ratio if needed.

Click the OK button to set the resolution. Now, you can use the Ctrl+S hotkey to save the file. However, if you want to save a copy of the file, you need to use File > Save as option.

How to change file resolution in Paint 3D

To change file resolution in Paint 3D, follow these steps-

1. Open the image in Paint 3D.
2. Switch to the Canvas tab.
3. Set resolution changing method.
4. Select new height and width.
5. Press Ctrl+S to save the file.

Read on to learn more about these steps.

First, open the Paint 3D app and open your image in this tool. After opening the file, you need to switch to the Canvas tab.

Here you can find a drop-down menu from where you can choose whether you want to change the dimension by percentage or pixel. Select a method as per your desire and set the resolution accordingly.

Now, press Ctrl+S to save the file.

Bonus tip: If you keep the tick in the Lock aspect ratio box, you do not need to change the height and width separately.

I hope this simple tutorial will help you.

How to increase the resolution of an image in Paint?

You can use the Resize and skew menu to increase the resolution of an image horizontally and vertically. There you have the option to increase the resolution by pixels or percentage. However, note that if an image is of low resolution (or height and width), increasing its size may result in bad image quality or make the image pixelated.

Can you resize an image in Paint?

Yes, there is a dedicated menu in the Paint app in Windows 11/10 to resize an image. The option to skew (or twist) the image is also present there. After opening an image in the Paint app, press the Ctrl+W hotkey to open the Resize menu and adjust the image height and width as per your needs. You can also crop an image and zoom in an image up to 800% in the Paint app.

Read next: How to create AI images using Cocreator in the Paint app.