http://forums.jcatalog.com/forums/posts/list/2.page JForum - http://www.jforum.net
I have ver 3.1.23 install on OS X and cannot successfully generate PDFs. From the log files I get:

01.12.2010 16:33:44 PDF = /Users/xxx/Desktop/demo.pdf
01.12.2010 16:33:44 [INFO] Using org.apache.xerces.parsers.SAXParser as SAX2 Parser
01.12.2010 16:33:44 [INFO] Using org.apache.xerces.parsers.SAXParser as SAX2 Parser
01.12.2010 16:33:44 [INFO] setting up fonts
01.12.2010 16:33:44 [ERROR] unknown font Times New Roman,normal,normal so defaulted font to any
01.12.2010 16:33:44 [ERROR] unknown font Times New Roman,normal,normal so defaulted font to any
01.12.2010 16:33:44 Trying to print document: /Users/xxx/Desktop/demo.pdf
01.12.2010 16:33:44 PT 593: <'open /Applications/Preview.app' '/Users/xxx/Desktop/demo.pdf'>

but no file is created or opened.]]> http://forums.jcatalog.com/forums/posts/preList/143/9783.page http://forums.jcatalog.com/forums/posts/preList/143/9783.page GMT
Please also check if /Users/xxx/Desktop/demo.pdf file exists and non-zero (according to log piece you attached, PDF is generated). If not, please send us complete log file and your layout to us.
]]> http://forums.jcatalog.com/forums/posts/preList/143/9784.page http://forums.jcatalog.com/forums/posts/preList/143/9784.page GMT
SLfast (R) (TM) Launch
01.12.2010 16:54:32 View Engine = [rxgef.jar/com.xslfast.view.designer.DefaultDOVFactory]
01.12.2010 16:54:33 WWW java.lang.NullPointerException
01.12.2010 16:55:00 Adding new page: New layout 1/com.xslfast.model.Page@2c1533c8
01.12.2010 16:55:00 -DOF- Fig added: com.xslfast.view.designer.paint.gef.PageFigure[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=8,maximumSize=,minimumSize=,preferredSize=]
01.12.2010 16:55:00 View = com.xslfast.view.designer.paint.gef.PageFigure[,0,0,0x0,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=8,maximumSize=,minimumSize=,preferredSize=]
01.12.2010 16:55:00 View registered
01.12.2010 16:55:00 doChangePage: [com.xslfast.model.Page@2c1533c8]
01.12.2010 16:55:00 doChangePage: com.xslfast.model.Page@2c1533c8: null
01.12.2010 16:55:00 Tab have added
01.12.2010 16:55:00 ... com.xslfast.view.dialogs.XslDesigner
01.12.2010 16:55:00 ... com.xslfast.view.inspector.Inspector$InspectorFigureListener
01.12.2010 16:55:00 Listeners have added
01.12.2010 16:55:00 Object views have attached
01.12.2010 16:55:00 Done
01.12.2010 16:55:00 IdHelper: 1 objects from layout registered
01.12.2010 16:55:07 Trying parse as io.DTD

01.12.2010 16:55:07 java.lang.ClassCastException: com.xslfast.io.xml.ParseException: Lexical error at line 2, column 2. Encountered: "h" (104), after : "<"Trying parse as io.XSD
01.12.2010 16:55:08 Trying parse as io.XML
01.12.2010 16:55:08 Resolved as io.XML: hash
01.12.2010 16:55:08 undoStack::push <pageSequencer := [/hash]>
01.12.2010 16:55:08 setNewHierView: com.xslfast.model.Page@2c1533c8: com.xslfast.util.DefaultSortedTreeModel@706ee404
01.12.2010 16:55:08 undoStack::startTransaction
01.12.2010 16:55:09 undoStack::endTransaction
01.12.2010 16:55:15 undoStack::startTransaction
01.12.2010 16:55:15 -DOF- Fig added: TextFlow()
01.12.2010 16:55:16 Object added: com.xslfast.model.TextFlow
01.12.2010 16:55:16 objectAdded::undo: com.xslfast.model.Page@2c1533c8, , null/null
01.12.2010 16:55:16 undoStack::objectAdded
01.12.2010 16:55:16 DefaultDOVFactory::objectAdded(com.xslfast.model.TextFlow)
01.12.2010 16:55:16 undoStack::endTransaction
01.12.2010 16:55:16 -DFS*SZ => java.awt.Rectangle[x=73,y=86,width=216,height=172]
01.12.2010 16:55:16 undoStack::startTransaction
01.12.2010 16:55:16 -d- TextFlow()/ [java.awt.Point[x=148,y=154]] => [java.awt.Point[x=148,y=154]], DTV=null
01.12.2010 16:55:16 undoStack::endTransaction
01.12.2010 16:55:16 undoStack::startTransaction
01.12.2010 16:55:16 -d- TextFlow()/ [java.awt.Point[x=148,y=154]] => [java.awt.Point[x=148,y=154]], DTV=null
01.12.2010 16:55:16 undoStack::endTransaction
01.12.2010 16:55:25 undoStack::startTransaction
01.12.2010 16:55:25 undoStack::push <textFlowContents := [Test PDF Output]>
01.12.2010 16:55:25 TBF := [Arial]
01.12.2010 16:55:25 undoStack::push <logicalStyle := null>
01.12.2010 16:55:25 TBF := [Arial]
01.12.2010 16:55:25 undoStack::push <lineHeight := 14.399999999999999>
01.12.2010 16:55:25 TBF := [Arial]
01.12.2010 16:55:25 undoStack::endTransaction
01.12.2010 16:56:08 undoStack::startTransaction
01.12.2010 16:56:08 undoStack::push <xse::markup := Saving...>
01.12.2010 16:56:08 undoStack::endTransaction
01.12.2010 16:56:08 undoStack::capacity <3>: com.xslfast.view.undo.TxCommand@3dffb2eb: 1 -> (xse::markup := [], was [Saving...] )
01.12.2010 16:56:08 TBF := [Arial]
01.12.2010 16:56:08 TBF := [Arial]
01.12.2010 16:56:11 Time for transformation to XML file: 0sec
01.12.2010 16:56:11
01.12.2010 16:56:11 PDF = /Users/jstride/Desktop/output.pdf
01.12.2010 16:56:11 [INFO] Using org.apache.xerces.parsers.SAXParser as SAX2 Parser
01.12.2010 16:56:11 [INFO] Using org.apache.xerces.parsers.SAXParser as SAX2 Parser
01.12.2010 16:56:11 [INFO] setting up fonts
01.12.2010 16:56:11 [ERROR] unknown font Arial,normal,normal so defaulted font to any
01.12.2010 16:56:11 [ERROR] unknown font Arial,normal,normal so defaulted font to any
01.12.2010 16:56:11 Trying to print document: /Users/jstride/Desktop/output.pdf
01.12.2010 16:56:11 PT 593: <'open /Applications/Adobe\ Reader\ 9/Adobe\ Reader.app' '/Users/jstride/Desktop/output.pdf'>
]]> http://forums.jcatalog.com/forums/posts/preList/143/9785.page http://forums.jcatalog.com/forums/posts/preList/143/9785.page GMT
Please use 3.1.29 (or 4.0.1) for mac OS X.
]]> http://forums.jcatalog.com/forums/posts/preList/143/9796.page http://forums.jcatalog.com/forums/posts/preList/143/9796.page GMT http://forums.jcatalog.com/forums/posts/preList/143/9797.page http://forums.jcatalog.com/forums/posts/preList/143/9797.page GMT