Cannot See previews in Enterprise trail version

LogicalDOC has many interesting features, but requires some configuration process to show its full potential.

Moderator: car031

Paragon
Posts: 2
Joined: Fri Jun 30, 2017 11:18 am

Cannot See previews in Enterprise trail version

Wed Jul 12, 2017 10:52 am

Hello,

I am kind of a newbie towards Logical Doc and I'm trying my best to learn everything. One of the major issues that I am having at the moment is that I can't view previews apart from PDFs. I am currently using LogicalDOC Enterprise trial Version 7.7 on a windows based server and I know that on the community version you're only allowed to view pdfs.

I think it might be an issue with my external apps and I'll add a screenshot of the current external apps that I am using.
https://prnt.sc/fuov84

I would appreciate any help with this issue as it has been bothering me for about a week.

Thank you,

Stefan
agaspa
Posts: 540
Joined: Tue Apr 20, 2010 8:24 am

Re: Cannot See previews in Enterprise trail version

Mon Aug 07, 2017 10:27 am

Hi Stefan,
starting from LD 7.7 we introduced the Format Converter, that feature will allow you to convert documents from one format to another and is obviously also used to convert document into PDFs (these will be used by the preview system)

So you should configure the converter for the documents from the format you have to PDF;
basically LD uses LibreOffice to convert documents, but there are also other options available.

http://docs.logicaldoc.com/en/settings/ ... converters

First you should check to have LibreOffice installed on your server (Whether it's windows or Linux)
gstrylewicz
Posts: 1
Joined: Thu Aug 17, 2017 9:36 pm

Re: Cannot See previews in Enterprise trail version

Thu Aug 17, 2017 10:07 pm

Hi,

Brand new installation of LD 7.7.1 (Trial version). on a fresh Windows 2016 Server. LibreOffice installed as part of install process.

Preview of Word documents does not work, PDF and images are fine. Error message below.

2017-08-17 13:09:41.051 WARN com.logicaldoc.core.conversion.FormatConverterManager Converter LibreOfficeConverter in error rendering pdf for document: 3407873 - Request.docx
java.io.IOException: Unable to convert the file.
at com.logicaldoc.enterprise.conversion.LibreOfficeConverter.convertWithLibreOffice(Unknown Source)
at com.logicaldoc.enterprise.conversion.LibreOfficeConverter.internalConvert(Unknown Source)
at com.logicaldoc.core.conversion.AbstractFormatConverter.convert(AbstractFormatConverter.java:42)
at com.logicaldoc.core.conversion.FormatConverterManager.createPdf(FormatConverterManager.java:225)
at com.logicaldoc.enterprise.conversion.ConvertPdf.doGet(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at com.logicaldoc.core.security.spring.LDAnonymousLoginFilter.doFilter(LDAnonymousLoginFilter.java:77)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:164)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
car031
Posts: 154
Joined: Tue Apr 17, 2012 8:27 am

Re: Cannot See previews in Enterprise trail version

Tue Sep 12, 2017 8:08 am

Do this:
1- Stop LogicalDOC
2- Delete the contents inside folder <LDOC_HOME>/tomcat/Temp/
3- Start LogicalDOC

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