I.R.I.S. Readiris Corporate 12 for Windows User Guide - Manual (Page 96)

Chapter 11 – Formatting and saving documents
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Tip: When saving documents as HTML files to post on a web site, reduce the
resolution to 70 dpi (screen resolution).
JPEG quality
Graphics stored inside PDF, XPS, Word and RTF documents are
saved in the JPEG format.
Use the slider to adjust the JPEG quality.
JPEG 2000 compression
When saving files in the PDF or XPS format, Readiris can apply
JPEG 2000 compression to the color-grayscale images stored inside
those files.
JPEG 2000 is the newest, more compact version of the JPEG standard.
Select the option JPEG 2000 compression to apply it.