Image transcoding (JPEG to PNG) with Java

Question

In my Java application I would like to download a JPEG, transfer it to a PNG and do something with the resulting bytes.

I am almost certain I remember a library to d

Answer 1

javax.imageio should be enough. Put your JPEG to BufferedImage, then save it with:

File file = new File("newimage.png");
ImageIO.write(myJpegImage, "png", file);