Will Paint lose the quality of my original PNG when converting to JPEG?

JPEG is a lossy format, so some image quality is lost during compression. Paint uses a default quality setting with no slider, so you cannot control how much quality is lost. The original PNG file is not affected because Save As creates a new file.

Can I convert a PNG with transparent background to JPG without losing transparency?

No. JPEG format does not support an alpha channel for transparency. When you save in Paint, transparent areas become solid white (or another color if you fill them first). To keep transparency, stay with PNG or use a format like GIF or WebP that supports transparency.

Does Paint work the same way on Windows 10 and Windows 11?

Yes, the steps to open, save, and convert are identical on both versions. The only difference is how you enable file name extensions in File Explorer, which is explained in the guide above.

What if I rename a PNG file to .jpg without opening it in Paint?

Renaming a file from .png to .jpg changes only the file name, not the image data. The file remains a PNG and may not open correctly in programs expecting a JPEG. Always use Paint or another converter to actually change the format.

How to Convert PNG to JPG in Windows Paint

Open your PNG in the Paint app on Windows, go to Save As, and pick JPEG. No extra software. The whole job takes under a minute on Windows 10 and Windows 11. Below you will learn exactly how to do it, what happens to transparent areas, and how to confirm the file type really changed.

Open Your PNG File in Paint

Right-click the PNG in File Explorer, choose "Open with", then select Paint. That is the fast way. The slower way: launch Paint, click File, then Open, and browse to your file. Ctrl+O works too. Paint will display the image on the canvas. If the PNG has transparent areas, those areas will appear white because Paint does not display transparency. That white becomes part of the image when you save as JPEG.

Save the Image as a JPEG

Click File in the top-left menu.
Hover over "Save as" in the dropdown. A submenu appears.
Select "JPEG picture". This opens the Save As dialog.
Pick a location and a file name. The name will end with .jpg automatically.
Click Save.

Press F12 to jump straight to the Save As dialog. Change the "Save as type" dropdown to "JPEG picture" if it is not already selected. Paint saves the image as a JPEG. Your original PNG sits untouched in its original location. Delete it manually when you are ready.

What Happens to Transparent Areas

JPEG has no alpha channel. That is the image-data layer that stores transparency. When you save a PNG with transparent pixels as a JPEG, the transparency cannot survive. Paint fills those areas with a solid color, usually white, because Paint itself does not display transparency. You may see a warning message stating that transparency will be lost. This is normal. If you need to preserve transparent areas, keep the file as PNG or use another format that supports alpha channels.

Check That the File Type Really Changed

Renaming a file from .png to .jpg changes only the label. The image data inside remains PNG. To confirm that Paint actually converted the image, you must look at the file suffix. Windows File Explorer hides these by default, so you may need to turn them on.

Show File Suffixes in Windows 11

Open File Explorer. Click the View menu, go to Show, and select "File name extensions". Every file now shows its suffix, such as .png or .jpg.

Show File Suffixes in Windows 10

Open File Explorer, click the View tab, and check "File name extensions" in the Show/hide section. Suffixes appear next to every file name.

Once suffixes are visible, find the file you saved. It must end with .jpg. If you see .png, the file was not converted, or you saved it as PNG again. Open the file in an image viewer that shows file-type details to double-check.

What Paint Cannot Do

No JPEG quality slider. Paint gives you no control over compression. The JPEG it creates uses a default quality setting that balances file size and image quality. If you need to control compression, you will need other software or an online converter.
One file at a time. Paint opens and saves one image per session. Converting many PNGs this way is slow. For bulk conversion, an online batch converter is faster.
Transparency is lost. JPEG has no alpha channel, so transparent areas become solid white or another color.
No batch rename or conversion. Paint has no automation features. Each file must be opened and saved individually.

When to Use Paint Vs. an Online Converter

Use Paint when you have one or two files and you want to stay entirely on your computer with no internet upload. It is also the right call if you prefer not to use a third-party website. For converting many files at once, an online converter like pngtojpgconverteronline.com can process several images in one batch. That site converts PNG to JPG free, online, and without adding a watermark. You upload the files, the site returns the converted JPEGs, and the originals are not stored permanently. Choose the method that fits your workflow.

Summary of Steps

Open the PNG in Paint: File > Open (Ctrl+O), or right-click the file and select Open with > Paint.
Click File > Save as > JPEG picture. Or press F12 and select JPEG picture.
Choose a location and file name, then click Save.
To confirm the conversion, enable file name suffixes in File Explorer: View > Show > File name extensions on Windows 11, or View tab > File name extensions checkbox on Windows 10.
Check that the saved file ends with .jpg. The original PNG remains unchanged unless you delete it.