Extract bookmarks from pdf file

[Guest]

Hey Guys,

How can i extract the bookmarks from a PDF file.

I am creating a table of contents in a coldfusion 8 page and I need the bookmarks to link the chapters to the pdf pages.

Thanks a lot!!

Sid

[-__cfSearching__-]

You could use a bit of iText to extract the bookmark details (essentially an array of structures) or export them to xml.

<!--- syntax may differ for cf8 --->

<cfset input = "c:/path/to/yourFile.pdf">
<cfset reader = createObject("java", "com.lowagie.text.pdf.PdfReader").init(input)>
<cfset bookmarks = createObject("java", "com.lowagie.text.pdf.SimpleBookmark").getBookmark(reader)>
<cfif structKeyExists(variables, "bookmarks")>
    <cfdump var="#bookmarks#">
</cfif>

[Guest]

Hey Thanks a lot for code!!!

I am getting an error saying:

Object instantiation exception.

An exception occurred while instantiating a Java object. The class must not

be an interface or an abstract class. Error: ''. The error occurred

in *C:\www\xxxxxxxxxxxxx\index.cfm:

line 5*

3 :

4 :

Thanks a lot!!!

Sid

[-__cfSearching__-]

I am getting an error saying:

Object instantiation exception.

CF8's version of iText is older. So there might be some syntax differences. Can you post the strack trace? That has the real error message.

[Guest]

Sure here u go!!

java.lang.reflect.InvocationTargetException

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at coldfusion.runtime.java.JavaProxy.CreateObject(JavaProxy.java:166)

at coldfusion.runtime.java.JavaProxy.invoke(JavaProxy.java:80)

at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:2360)

at cfindex2ecfm230452687.runPage(C:\www\comm_dev\site-deployment-root\wwwroot\pubs\factsheets\impacto_padre\index.cfm:5)

at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:231)

at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:416)

at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)

at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:381)

at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48)

at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)

at coldfusion.filter.PathFilter.invoke(PathFilter.java:94)

at coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:27)

at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)

at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:79)

at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)

at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)

at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)

at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)

at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)

at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)

at coldfusion.CfmServlet.service(CfmServlet.java:200)

at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)

at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)

at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)

at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)

at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)

at jrun.servlet.FilterChain.service(FilterChain.java:101)

at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)

at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)

at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)

at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)

at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)

at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)

at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

Caused by: java.io.IOException: impactopadres.pdf not found as file or resource.

at com.lowagie.text.pdf.RandomAccessFileOrArray.(Unknown Source)

... 38 more

[-__cfSearching__-]

Caused by: java.io.IOException: impactopadres.pdf not found

as file or resource.

The error is saying it cannot find your file OR CF does not have permission to read the file. Did you use an absolute path ? Is the path to your pdf correct? ie Does FileExists(pathToYourFile) return true?

[Guest]

Ooh I was using a non absolute path. I changes it to an absolute path and it

worked. But is there any other solution for a non absolute path.

Thanks a lot for all the help!!!

[-__cfSearching__-]

There are plenty of CF functions for converting file paths, such as ExpandPath(). Check the "System functions" in the documentation.

http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WSc3ff6d0ea77859461172e0811cbec1a60c-7ffc.html#WSc3ff6d0ea77859461172e0811cbec22c24-69b7

[Guest]

Awesome!! Thanks a lot!!

[Guest]

This is the line 5:

• <cfset reader = createObject("java",

"com.lowagie.text.pdf.PdfReader").init(input)>*