I.R.I.S. Readiris Corporate 12 for Windows User Guide - Manual (Page 94)

Chapter 11 – Formatting and saving documents
88
Create bookmarks
The option Create bookmarks creates bookmarks for each text
block, graphic and table in Microsoft XPS files.
I
HQC
COMPRESSING
XPS
DOCUMENTS
Besides four types of "regular" XPS output, Readiris offers iHQC
compressed XPS output. XPS documents of the types Image-Text
and Image can be hyper-compressed by means of iHQC.
iHQC stands for intelligent High-Quality Compression, I.R.I.S.'
proprietary, efficient compression technology. iHQC is to images
what MP3 is to music and what DivX is to movies.
To generate iHQC compressed XPS output:
 Click the Format button on the main toolbar and choose
between the two output modes.
 In the Send to or External file list, select the PDF type of your
choice: XPS Image-Text or XPS Image.
 On the XPS Options tab, select the required compression level.
Readiris Pro supports Level I Good size and Level I Good
quality compression.