
Resizing images is a common task, whether it's for a creative project, social media sharing, or simply adjusting image dimensions for a presentation or to fit a profile picture. Paint 3D, the more modern counterpart to Microsoft Paint, offers a simple method for resizing images. This guide will show you how to increase a JPEG image using Paint 3D.
| Characteristics | Values |
|---|---|
| Open JPEG image | Open Paint 3D > Click File > Open > Choose JPEG image |
| Select area to resize | Drag area with mouse or press Ctrl-A to select all > Right-click to see resize option |
| Change dimensions | Change percentage or pixels > Enter new dimensions > Uncheck "Maintain aspect ratio" if needed |
| Save image | Go to File > Save as > Save as JPEG file > Choose location |
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What You'll Learn

Open Paint 3D and the JPEG image
To open Paint 3D and a JPEG image, follow these steps:
- Open the Paint 3D app on your PC or Windows 10/11 computer. You can use the Taskbar search box or Windows Search bar to find and open the app.
- Once Paint 3D is open, select "Menu," usually found in the top-left corner of the window.
- File Explorer will open. Navigate to the location of your JPEG image.
- Click on the image to select it, and then click "Open." The JPEG image will now open in the Paint 3D canvas.
- Alternatively, before opening Paint 3D, you can navigate to the location of your JPEG image, right-click on it, and select "Edit with Paint 3D" from the menu. Paint 3D will open with the image inserted.
Now that your JPEG image is open in Paint 3D, you can proceed to edit and resize it according to your needs. Remember that increasing the size of an image in Paint 3D may result in a blurry or pixelated appearance. To avoid this, consider using alternative methods or tools for upscaling your images, such as AI-based solutions.
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Switch to the Canvas tab
To increase the size of a JPEG in Paint 3D, you must first open the image in the Paint 3D app. Once the image is open, switch to the Canvas tab.
The Canvas tab is where you can adjust the dimensions of your image. Here, you will find a drop-down menu that allows you to choose whether to change the dimensions by percentage or pixel. If you want to increase the image size, you can do so by adjusting the height and width accordingly.
It is important to note that increasing the size of a low-resolution image may result in poor image quality or pixelation. To avoid this, try to maintain the aspect ratio by keeping the tick in the Lock aspect ratio box. This will ensure that you do not need to change the height and width separately, helping to preserve the image quality.
Additionally, you can use the Ctrl+S hotkey to save your changes without creating a copy of the file. However, if you wish to save a copy, use the File > Save As option.
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Change the dimensions by percentage or pixels
To change the dimensions of a JPEG image by percentage or pixels in Paint 3D, follow these steps:
First, open the Paint 3D application on your PC or device. You can use the taskbar search box to open the app. Once the app is open, open the JPEG image file that you want to edit.
Next, switch to the Canvas tab. Here, you will find a drop-down menu that allows you to choose whether to change the dimension by percentage or pixel. Select your preferred method and set the resolution accordingly.
If you want to maintain the aspect ratio of the image, make sure to keep the Lock aspect ratio box ticked. This will ensure that the image is logically resized and prevents it from becoming distorted or stretched.
After making your changes, press Ctrl+S to save the file. Alternatively, you can use the File > Save as option if you want to save a copy of the file.
It is important to note that increasing the size of an image with low resolution may result in poor image quality or pixelation.
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Save the image
To save an image in Paint 3D, follow these steps:
- Open the Paint 3D app on your PC.
- Open the image in Paint 3D.
- Click on the "Menu" button.
- Select "Save as".
- Choose JPEG or 2D-JPEG from the Save as type drop-down menu.
- Select a location to save the file.
- Click the "Save" button.
You can also use the Ctrl+S shortcut key to save the file. If you want to save a copy of the file with a different name or in a different location, use the File > Save as option.
It is important to note that increasing the size of an image in Paint 3D may result in a blurry or pixelated image. This can be improved by upscaling your photos using AI.
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Check the new file size
Once you've made your desired changes to the image in Paint 3D, it's essential to check the new file size to ensure it meets your requirements. Here's a step-by-step guide on how to do this:
- Save the Resized Image: After resizing your JPEG image in Paint 3D, click on the "Menu" button, typically located in the top-left corner. Then, select "Save as" from the options.
- Choose the File Format: In the Save As dialog box, choose "Image" as the file format. This will ensure that your file is saved with the appropriate image format and settings.
- Select the File Type: In the "Save as type" field, select "2D-JPEG" to specify that you want to save your image in the JPEG format.
- Choose a Save Location: Decide where you want to save the file on your computer. You can select a specific folder or create a new one to keep your files organized.
- Click the "Save" Button: Finalize the process by clicking the "Save" button. This will save your resized image in the chosen location.
- Compare File Sizes: After saving, you can now compare the size of the new file with the old one. Open the folder containing the original image and the resized image. Check their file sizes by right-clicking on each file and selecting "Properties." This will display the file size and other relevant information.
By following these steps, you can verify that your JPEG image has been successfully resized and that the new file size aligns with your expectations. Remember to consider the trade-off between image size and quality, as increasing the size of a low-resolution image may result in pixelation or degraded image quality.
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