Save, Options JPEG2000
Click one of the option buttons to set a compression level for JP2 images. If you select Quality or Compress to bytes, type in a value for the option. Lossless compression allows saving of the image without loosing any image information (= highest quality).
After setting the options you choose, click Save to save the image and store the settings. To exit without saving the file or changed options, click Cancel.
The new settings will stay in effect until you change them again.