I tried to convert the PPT into PDF but getting
java.lang.NullPointerException
at com.aspose.slides.internal.cn.do.do(Unknown Source)
at com.aspose.slides.internal.cn.do.do(Unknown Source)
at com.aspose.slides.internal.cn.do.do(Unknown Source)
at com.aspose.slides.internal.bd.try.void(Unknown Source)
at com.aspose.slides.internal.bd.try.else(Unknown Source)
at com.aspose.slides.internal.bd.try.d(Unknown Source)
at com.aspose.slides.internal.bs.char.new(Unknown Source)
at com.aspose.slides.internal.be.goto.int(Unknown Source)
at com.aspose.slides.internal.bd.int.new(Unknown Source)
at com.aspose.slides.internal.bd.int.do(Unknown Source)
at com.aspose.slides.internal.cx.if.do(Unknown Source)
at com.aspose.slides.internal.cx.for.do(Unknown Source)
at com.aspose.slides.internal.ld.import.do(Unknown Source)
at com.aspose.slides.y7.do(Unknown Source)
at com.aspose.slides.Picture.do(Unknown Source)
at com.aspose.slides.mg.do(Unknown Source)
at com.aspose.slides.mg.do(Unknown Source)
at com.aspose.slides.mg.do(Unknown Source)
at com.aspose.slides.mg.(Unknown Source)
at com.aspose.slides.OleObjectFrame.do(Unknown Source)
at com.aspose.slides.GroupShape.do(Unknown Source)
at com.aspose.slides.Slide.for(Unknown Source)
at com.aspose.slides.Slide.do(Unknown Source)
at com.aspose.slides.Slide.do(Unknown Source)
at com.aspose.slides.abm.do(Unknown Source)
at com.aspose.slides.abm.do(Unknown Source)
at com.aspose.slides.Presentation.do(Unknown Source)
at com.aspose.slides.Presentation.save(Unknown Source)
at com.rage.docconversion.converters.PowerPoint.convert(PowerPoint.java:31)
at com.rage.docconversion.converters.AbstractConverter.toPDF(AbstractConverter.java:48)
at com.rage.docconversion.converters.ConverterProxy.toPDF(ConverterProxy.java:32)
at com.rage.docconversion.util.Utility.convertToPDF(Utility.java:79)
at com.rage.docconversion.api.DocConversionAPI.docToDoc(DocConversionAPI.java:220)
at jdk.internal.reflect.GeneratedMethodAccessor33.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)
Can you please look into the issue.