Unable to Export to PDF due to Invalid CSS
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
When exporting Page or Space to PDF, the following appears in the atlassian-confluence.log:
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2012-09-26 22:48:02,605 ERROR [http-8443-8] [atlassian.confluence.servlet.ConfluenceServletDispatcher] sendError Could not execute action
-- url: /spaces/flyingpdf/pdfpageexport.action | userName: admin | referer: https://confluence/display/SANDBOX/Excel+Export+Test
com.atlassian.confluence.importexport.ImportExportException: Exception while rendering the PDF document /opt/app/confluence/data/temp/pdfexport-20120926-260912-2248-1/SANDBOX-ExcelExportTest-260912-2248-2.pdf
at com.atlassian.confluence.extra.flyingpdf.FlyingSaucerXmlToPdfConverter.convertXhtmlToPdf(FlyingSaucerXmlToPdfConverter.java:111)
at com.atlassian.confluence.extra.flyingpdf.FlyingSaucerXmlToPdfConverter.convertXhtmlToPdf(FlyingSaucerXmlToPdfConverter.java:39)
at com.atlassian.confluence.extra.flyingpdf.FlyingSaucerPdfExporterService.createPdfForPage(FlyingSaucerPdfExporterService.java:78)
at com.atlassian.confluence.extra.flyingpdf.ExportPageAsPdfAction.execute(ExportPageAsPdfAction.java:28)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:168)
at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
at com.atlassian.confluence.core.ConfluenceWorkflowInterceptor.intercept(ConfluenceWorkflowInterceptor.java:64)
....
Caused by: java.lang.IllegalArgumentException: Font size too small: 0.0
at com.lowagie.text.pdf.PdfContentByte.setFontAndSize(Unknown Source)
at org.xhtmlrenderer.pdf.ITextOutputDevice.drawString(ITextOutputDevice.java:485)
at org.xhtmlrenderer.pdf.ITextTextRenderer.drawString(ITextTextRenderer.java:42)
....
Cause
The export fails due to invalid Stylesheet set in your Confluence Admin or Space Admin.
Resolution
Remove the PDF Stylesheet in Confluence Admin > Global PDF Stylesheet and Space Admin > PDF Stylesheet
Try to export to PDF again
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