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h1. ICEpdf 5.2.0 Release Notes

*{_}September 1st, 2015{_}*
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h3. Contents

This document includes the following sections:

* [About This Release|#about]
* [Notable Changes and Enhancements|#notablechanges]
* [Known Issues|#knownissues]
* [Migration Notes|#migrationnotes]
* [Support|#support]

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h3. About This Release

CEpdf v5.2 BETA1 introduces important new features such as editable and savable AcroForms and support modifying encrypted documents. Also This release also includes over 60 bug fixes and enhancements.
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h3. Notable Changes and Enhancements

* *Rendering Core*
** Support for viewing AcroForm widgets.
** Improved annotation rendering.
** Numerous improvements to content parser for malformed content.
** File under 200 MB in size will now be loaded via a memory map which can significantly improve load times and random access reeds.
** Improvements to document Catalog support.
** Numerous improvements to imaging and colour support.


* *Viewer RI*
** Improved searching support for integer and double numbers.
** Added support for named destination in outline tree.

* *Pro Version*
** Improved support for non-roman character sets and multi-byte encoded strings.
** Fixed translation issue with some symbol type fonts that use font hinting.
** Value editable AcroFrom widgets.
** Annotation write support for encrypted documents.


For a complete list of all changes in this release, see the related JIRA [Change Log|http://jira.icesoft.org/browse/PDF/fixforversion/11872].
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h3. Known Issues

The following section describes the most commonly encountered known issues with this release. For a complete reference of all outstanding issues please refer to the ICEpdf.org JIRA issue tracker.
General
* Batik libraries version 1.7 for SVG export has a known issue which will cause a null pointer when using the class SVGGraphics2D. Please use Batik version 1.6 or earlier (included in this release bundle), [http://xmlgraphics.apache.org/batik/].
* Depending on which version of the Java Advanced Imaging (JAI) library you are using, the installer program may assume you are installing it on a J2SE JDK installation. If you install the JAI into a J2SE JRE installation, you may need to move the installed files from the /jre subdirectory that the installer creates to the jre directory above. Newer versions of the JAI installer program have fixed this issue.
* Language support for none English languages is limited to the main Viewer controls and is incomplete for the Utility pane or popup dialogs.

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h3. Migration Notes

h4. 4.x to 5.x Migration Notes

*API Packaging Changes*
* The memory manager has been updated and it is no longer required to lock a Page object when accessing it through the PageTree API.
* PagePainter object is no long passed into a call to Page.paint() method. If long running Page paint method needs to be interrupted then a call to page.requestInterrupt() should be made.
* The use of Hashtable in the Dictionary class has been replaced with HashMap object.

*System Properties*
* Image scaling is now off by default and there two new scaling options, more information can be referenced found here, [imaging options|http://www.icesoft.org/wiki/display/PDF/Imaging+Options]
* Many system properties have been removed as they are no longer needed or irrelevant. Please review [System Properties|http://www.icesoft.org/wiki/display/PDF/System+Properties] for a complete list of supported system properties.

*Viewer RI*
* The Viewer RI has been updated to support annotation editing tools, for more information on these see [Working with Annotations | http://www.icesoft.org/wiki/display/PDF/Working+with+Annotations].
* Layer support has been added to the Viewer RI utility pane, for more information see [User Layers |http://www.icesoft.org/wiki/display/PDF/Changing+Visibility+of+Layered+Content].


h4. 3.x to 4.x Migration Notes

The following changes may affect applications that were originally developed with a previous version of ICEpdf.
ICEpdf Core API
* When extracting text using the org.icepdf.core.pobjects.Page Object the method not longer turns a Vector of Strings. Instead it now returns the data structure org.icepdf.core.pobjects.graphics.text.PageText. See class document and the example _install_dir_/icepdf/examples/extraction/PageTextExtraction.java for correct usage.

h4. 2.x to 4.x Migration Notes

The following changes may affect applications that were originally developed with a previous version of ICEpdf.

*ICEpdf Jar File Changes*
* The ICEpdf jar file names have been updated to better indicate their respective usage.
* Please update your applications to reflect the new jar names.
** icepdf-core.jar - was icepdf.jar, contains core ICEpdf rendering classes.
** icepdf-viewer.jar - was ri_pdf.jar, contains viewer reference implementation.
** icepdf-pro.jar ^\*^ \- Professional font library available under commercial licensing.
** icepdf-pro-int.jar ^\*^ \- Professional font library CMap files, available under commercial licensing.
^\*^ Denotes JAR files that are only available in ICEpdf Pro commercial release.

*API Packaging Changes*
* ICEpdf 4.0 packaging has been updated to match the domain of the new community site [http://www.icepdf.org/].
* Please update your applications to reflect the new base package name.
** Former package-name: com.icesoft.\*
** New package-name: org.icepdf.\*
* The ICEpdf API rendering core is now rooted at org.icepdf.core.*.
* The ICEpdf API viewer reference implementation is now rooted at org.icepdf.ri.*.

*System Properties*
* ICEpdf system properties have been changed to match the domain name of the community site [http://www.icepdf.org/].
* Please update your applications use of ICEpdf system properties to reflect the new base package name.
** Former package-name: com.icesoft.\*
** New package-name: org.icepdf.\*

*JDK 1.5\+ Now Required*
* ICEpdf source code has been updated to the JDK 1.5 Java language specification to take advantage of numerous features and improvements to the Java programming language. As a result, ICEpdf v4.0 is not deployable to Java JRE versions older than 1.5.
* Older versions of the Java JDK and JRE have been added to Sun's end of life and are no longer publicly supported.
** JDK 1.3.1 reached the end of its service life (EOSL), December 11th, 2006.
** JDK 1.4.2 reached the end of its service life (EOSL), October 11th, 2008.
* For more information on Java Platform Migration please see [http://java.sun.com/j2se/JM_White_Paper_R6A.pdf].

*Logging System*
* ICEpdf 4.0 now uses Java logging API for all logging tasks.
* A sample logging.properties file is included in the directory .../install_dir/icepdf/lib/.
* The custom logging properties file can be specified with the following system property:
** \-Djava.util.logging.config.file=logging.properties
* Further information on java.util.logging can be found at [http://java.sun.com/j2se/1.5.0/docs/guide/logging/].

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h3. Support

Please visit the [www.icepdf.org|http://www.icepdf.org/] community site for additional information, demos, and resources.

All questions, comments, or general discussion specific to ICEpdf 5.0 should be made in the [ICEpdf Forum|http://www.icefaces.org/JForum/forums/show/28.page] forum.

For information on commercial support, professional services, and training, please visit [http://support.icepdf.org].