Hi, when we import a PDF document (which can be opened in Libre Office successfully) into XWiki we get the error message: *500 Internal Server Error The call failed on the server; see server log for details* Looking at the Tomcat 7 server logs there are several entries, see below. Out setups is the following: Windows Server 2003 R2 (32-bit), Tomcat 7, JDK 7 u71, Apache 2.4, XWiki 6.3, Libre Office 4.3.4.1. Is there something I need to configure or is this a bug? Log entries: [1] localhost.2015-02-05.log Feb 06, 2015 9:27:37 AM org.apache.catalina.core.ApplicationContext log SEVERE: Exception while dispatching incoming RPC call com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.String org.xwiki.gwt.wysiwyg.client.plugin.importer.ImportService.officeToXHTML(org.xwiki.gwt.wysiwyg.client.wiki.Attachment,java.util.Map)' threw an unexpected exception: java.lang.RuntimeException: Error while converting document [SMART Migration Installation.pdf] into html. at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:389) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:579) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:545) at org.xwiki.wysiwyg.server.XWikiRemoteServiceServlet.processCall(XWikiRemoteServiceServlet.java:52) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:305) at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.wysiwyg.server.filter.XWikiContextInitializationFilter.doFilter(XWikiContextInitializationFilter.java:85) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:197) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.RuntimeException: Error while converting document [SMART Migration Installation.pdf] into html. at org.xwiki.wysiwyg.server.internal.plugin.importer.XWikiImportService.officeToXHTML(XWikiImportService.java:137) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561) ... 37 more [2] tomcat7-stdout.2015-01-17.log 2015-02-06 09:27:37,149 [ http://de-ben-wiki/xwiki/resources/js/xwiki/wysiwyg/xwe/ImportService.gwtrpc] ERROR x.w.s.i.p.i.XWikiImportService - Exception while importing office document [SMART Migration Installation.pdf] org.xwiki.officeimporter.OfficeImporterException: Error while converting document [SMART Migration Installation.pdf] into html. at org.xwiki.officeimporter.internal.builder.DefaultXHTMLOfficeDocumentBuilder.build(DefaultXHTMLOfficeDocumentBuilder.java:97) ~[xwiki-platform-legacy-office-importer-6.3.jar:na] at org.xwiki.officeimporter.internal.builder.DefaultXDOMOfficeDocumentBuilder.build(DefaultXDOMOfficeDocumentBuilder.java:84) ~[xwiki-platform-legacy-office-importer-6.3.jar:na] at org.xwiki.wysiwyg.server.internal.plugin.importer.XWikiImportService.convertAttachmentContent(XWikiImportService.java:184) ~[xwiki-platform-wysiwyg-server-6.3.jar:na] at org.xwiki.wysiwyg.server.internal.plugin.importer.XWikiImportService.importAttachment(XWikiImportService.java:161) ~[xwiki-platform-wysiwyg-server-6.3.jar:na] at org.xwiki.wysiwyg.server.internal.plugin.importer.XWikiImportService.officeToXHTML(XWikiImportService.java:133) ~[xwiki-platform-wysiwyg-server-6.3.jar:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_71] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_71] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_71] at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_71] at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561) [gwt-servlet-2.6.0.jar:na] at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:545) [gwt-servlet-2.6.0.jar:na] at org.xwiki.wysiwyg.server.XWikiRemoteServiceServlet.processCall(XWikiRemoteServiceServlet.java:52) [xwiki-platform-wysiwyg-server-6.3.jar:na] at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:305) [gwt-servlet-2.6.0.jar:na] at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) [gwt-servlet-2.6.0.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) [servlet-api.jar:na] at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) [servlet-api.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) [catalina.jar:7.0.42] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.42] at org.xwiki.wysiwyg.server.filter.XWikiContextInitializationFilter.doFilter(XWikiContextInitializationFilter.java:85) [xwiki-platform-wysiwyg-server-6.3.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) [catalina.jar:7.0.42] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.42] at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) [xwiki-platform-container-servlet-6.3.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) [catalina.jar:7.0.42] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.42] at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) [xwiki-platform-webdav-server-6.3.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) [catalina.jar:7.0.42] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.42] at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) [xwiki-platform-container-servlet-6.3.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) [catalina.jar:7.0.42] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.42] at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) [xwiki-platform-container-servlet-6.3.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) [catalina.jar:7.0.42] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.42] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) [catalina.jar:7.0.42] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) [catalina.jar:7.0.42] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) [catalina.jar:7.0.42] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) [catalina.jar:7.0.42] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) [catalina.jar:7.0.42] at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) [catalina.jar:7.0.42] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) [catalina.jar:7.0.42] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) [catalina.jar:7.0.42] at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:197) [tomcat-coyote.jar:7.0.42] at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) [tomcat-coyote.jar:7.0.42] at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852) [tomcat-coyote.jar:7.0.42] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_71] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_71] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71] Caused by: org.xwiki.officeimporter.converter.OfficeConverterException: Error while performing conversion. at org.xwiki.officeimporter.internal.converter.DefaultOfficeConverter.convert(DefaultOfficeConverter.java:116) ~[xwiki-platform-legacy-office-importer-6.3.jar:na] at org.xwiki.officeimporter.internal.builder.DefaultXHTMLOfficeDocumentBuilder.build(DefaultXHTMLOfficeDocumentBuilder.java:94) ~[xwiki-platform-legacy-office-importer-6.3.jar:na] ... 46 common frames omitted Caused by: org.artofsolving.jodconverter.office.OfficeException: unsupported conversion at org.artofsolving.jodconverter.AbstractConversionTask.storeDocument(AbstractConversionTask.java:121) ~[jodconverter-core-3.0-beta-4-xwiki-20110822.jar:na] at org.artofsolving.jodconverter.AbstractConversionTask.execute(AbstractConversionTask.java:61) ~[jodconverter-core-3.0-beta-4-xwiki-20110822.jar:na] at org.artofsolving.jodconverter.office.ExternalOfficeManager.execute(ExternalOfficeManager.java:80) ~[jodconverter-core-3.0-beta-4-xwiki-20110822.jar:na] at org.artofsolving.jodconverter.OfficeDocumentConverter.convert(OfficeDocumentConverter.java:78) ~[jodconverter-core-3.0-beta-4-xwiki-20110822.jar:na] at org.artofsolving.jodconverter.OfficeDocumentConverter.convert(OfficeDocumentConverter.java:69) ~[jodconverter-core-3.0-beta-4-xwiki-20110822.jar:na] at org.xwiki.officeimporter.internal.converter.DefaultOfficeConverter.convert(DefaultOfficeConverter.java:100) ~[xwiki-platform-legacy-office-importer-6.3.jar:na] ... 47 common frames omitted