5. The next step is to save the image. To do this, go to the ‘File’ menu and select ‘Save as...’.
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6. In the new window select 'JPG' from the 'Save as Type' dropdown menu. Also make sure the 'Show option dialog' box is checked.
7. In the options window, check 'progressive' uncheck everything else.
8. You can now adjust the Quality slider.
9. Irfanview will not give you any feedback as to the final filesize, so you will have to check the file size manually in the windows explorer, and possibly repeat steps 5 though 8, adjusting the quality until the desired file size is reached.
