Operation Manual

C OREL PDF F USION U SER G UIDE
SETUPS INDEX CONTENTS  123 
XPS DOCUMENT SETUP INDEX CONTENTS  123 
9.5 XPS document setup
This section describes the XPS document setup options available to Corel PDF Fusion.
The Corel PDF Fusion XPS setup presents two tabs for different tasks. Click the tabs to
access and change the information contained under that heading.
• “General tab (XPS)” on page 123
• “Reporting tab (XPS)” on page 125
9.5.1 General tab (XPS)
Force font obfuscation
Font obfuscation is a means of preventing casual misappropriation of
embedded fonts. Specifically, embedded font obfuscation prevents end-
users from using standard ZIP utilities to extract fonts from XPS
document files and install them on their systems.
The items in the Interleaving panel of the General tab decide how resource parts of an
XPS document are physically organized in the XPS container alongside the document
parts.
Rather like optimizing a PDF file for fast web viewing, you might want to use these
options to prepare an XPS file for streaming, such as from a web server.
Interleaving
When the Interleaving option is unchecked the output XPS document
is created with
simple ordering , This means that the parts of the document
package are arranged contiguously. That is, when the output document
is read by a consumer of XPS it is delivered sequentially, all of the bytes
for the first part arrive first, followed by all of the bytes for the second
part, and so on. With simple ordering of a page containing text and
images, all of the bytes of the page part are delivered before the bytes
of the image part, and the consumer of the XPS document is unable to
display the image until it has received all of the page part and the image
part. With small documents on a high-speed network this method may
be acceptable. However, when creating large documents with lots of
images (for example), having to read through all of the markup/page.xml
to get to the image results could result in unacceptable performance and
place unreasonable memory demands on the consumer’s system.
When the Interleaving option is checked, the XPS document is created
using
interleaved ordering , that is, the data stream of a part is broken into
pieces, which can be interleaved with pieces of other parts or with
whole parts. For example, with interleaved ordering, a page containing
text and images can be split into pieces, so that the image resource parts
can be inserted immediately following the references to them on the
page. After each image part, the next piece of the page is inserted. This