For example, you’re able to export a file as aJPEGin GIMP.
Instructions in this article apply to GIMP version 2.10 for Windows, Mac, and Linux.
Use theExport Asbox to assign a name and location to the image.

ClickSelect File Typeto kick off the list of available file types.
Scroll down the list and selectJPEG Image.
SelectExportto open theExport Image as JPEGdialog box.

Select optional JPEG configs.
For most people, using the default tweaks works just fine.
SelectExportto keep your image as a JPEG.

Use the same method to export images in dozens of other formats includingGIF,PNG, andBMP.
The Pros and Cons of JPEG
JPEG is a popular format for saving photo images.
The quality of JPEG images is typically reduced as compression increases.
Quality loss can be significant when high levels of compression are applied.
This loss of quality is particularly apparent when someone zooms in on the image.