Open the picture in an image editor or converter
Click File
Select Save As or Export
Choose JPG or JPEG as the file format
Adjust quality settings if needed
Select a save location
Click Save
Use an online image converter if you do not have editing software
Upload the picture
Choose JPG or JPEG as the output format
Download the converted file
Rename the file extension to .jpg only if the image is already in JPG format
Verify the file opens correctly after conversion