If the title of a page in Confluence contains the colon character then it fails when a user attempts to use "Export to PDF" on a page when Confluence is running on Windows as it attempts to use the invalid character in the generated PDF's file name.

The result is a System Error page with the following...

Cause

com.atlassian.confluence.importexport.ImportExportException: Failed to create a location and file for the PDF export.
at com.atlassian.confluence.extra.flyingpdf.FlyingSaucerXmlToPdfConverter.convertXhtmlToPdf(FlyingSaucerXmlToPdfConverter.java:53)
caused by: java.io.IOException: The filename, directory name, or volume label syntax is incorrect
at java.io.WinNTFileSystem.canonicalize0(Native Method)

Stack Trace:

com.atlassian.confluence.importexport.ImportExportException: Failed to create a location and file for the PDF export.
at com.atlassian.confluence.extra.flyingpdf.FlyingSaucerXmlToPdfConverter.convertXhtmlToPdf(FlyingSaucerXmlToPdfConverter.java:53)
at com.atlassian.confluence.extra.flyingpdf.FlyingSaucerXmlToPdfConverter.convertXhtmlToPdf(FlyingSaucerXmlToPdfConverter.java:39)
at com.atlassian.confluence.extra.flyingpdf.FlyingSaucerPdfExporterService.createPdfForPage(FlyingSaucerPdfExporterService.java:98)
at com.atlassian.confluence.extra.flyingpdf.ExportPageAsPdfAction.execute(ExportPageAsPdfAction.java:27)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:168)
...