Transparent background in JPEG image

Question

How can I set a transparent background on JPEG image? This is a doubt of many colleagues of mine.

What would be the solution using Paint on Windows?

What are

Answer 1

You can't make a JPEG image transparent. You should use a format that allows transparency, like GIF or PNG.

Paint will open these files, but AFAIK it'll erase transparency if you edit the file. Use some other application like Paint.NET (it's free).

Edit: since other people have mentioned it: you can convert JPEG images into PNG, in any editor that's capable of working with both types.