Most web browsers and photo viewers can open this common image file format A PNG file is a Portable Network Graphics file.

What’s inside a PNG file? Graphics, sure ... You can even use the format for circuit simulation.

Open the PNG image with Paint and navigate to File > Save as > JPEG picture. Then, choose a location, add a name, and make sure the file format is set to JPEG. Now hit the Save button to finish ...

As JPEG images are compressed using lossy techniques the overall quality is not as good as that of an equivalent PNG file. In all cases, the resolution of an image is important. On a simple level ...