To merge PNG files, upload them to a merge tool that supports transparency, arrange them, and download. The key difference from merging JPGs is making sure transparent areas stay transparent instead of turning white or black in the output.
Why PNG merging needs extra care
PNG's alpha channel means part of the image can be fully or partially see-through, which logos, icons, and screenshots with transparent backgrounds rely on. A tool that flattens everything to a solid background will silently fill that transparency in, which ruins the exact thing PNG was chosen for.
Steps to merge PNG files
- Upload your PNG files, keeping their transparent areas as-is.
- Choose your layout and set the background to transparent if you want the gaps to stay see-through.
- If you do want a solid gap color, set it explicitly rather than leaving it to default.
- Download the merged file as PNG, not JPG, to preserve transparency.
| Output format | Keeps transparency | Best for |
|---|---|---|
| PNG | Yes | Logos, icons, screenshots with transparent backgrounds |
| JPG | No, transparent areas become solid | Photos with no transparency to preserve |
Frequently asked questions
- Will merging PNG files keep their transparency?
- Yes, as long as you export the result as PNG and set the merge background to transparent instead of a solid color.
- Can I merge PNG and JPG files together?
- Yes, but the JPG won't have transparency to contribute, so only the PNG areas can stay see-through.
- Why did my merged PNG lose its transparent background?
- The merge likely exported as JPG, or the background setting was a solid color instead of transparent.