.. _2c1b3710-fca3-4886-aa85-6f3b5b0716f7:

======================
Invalid page tree node
======================

.. contents::
   :depth: 2

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Classification
--------------

.. list-table::
   :align: center

   * - **Validator**
     - **Validator version**
     - **Error message type**
   * - JHOVE
     - 1.32.1
     - 


.. list-table::
   :align: center

   * - **File format**
     - **Version**
     - **Specification**
     - **Description**
     - **Location**
   * - application/pdf
     - 1.6
     - 
     - 
     - `OPF <https://github.com/openpreserve/format-corpus/tree/master/jhove-errors/PDF-HUL-29/108560872853724641186820772746051340254.pdf>`__

--------
Analyses
--------

No investigations yet.

.. note::

	To help, share and save knowledge about fixing validation errors, please see: https://github.com/Digital-Preservation-Finland/knowledge-base/tree/master/.github/CONTRIBUTING.rst

------------------
Possible solutions
------------------
.. contents::
   :local:

No remediation determined. All solutions are listed :ref:`here <solutions-list>`.

.. note::

	To update or provide a solution, please see: https://github.com/Digital-Preservation-Finland/knowledge-base/tree/master/.github/CONTRIBUTING.rst
--------------
Output example
--------------

::


	Validator returned error.
	<?xml version="1.0" encoding="UTF-8"?>
	<jhove xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schema.openpreservation.org/ois/xml/ns/jhove" xsi:schemaLocation="http://schema.openpreservation.org/ois/xml/ns/jhove https://schema.openpreservation.org/ois/xml/xsd/jhove/1.9/jhove.xsd" name="Jhove" release="1.32.1" date="2025-02-06">
	 <date>2026-06-15T15:21:07+03:00</date>
	 <repInfo uri="/corpus/format-corpus/jhove-errors/PDF-HUL-29/108560872853724641186820772746051340254.pdf">
	  <reportingModule release="1.12.7" date="2024-08-22">PDF-hul</reportingModule>
	  <lastModified>2026-06-15T13:22:17+03:00</lastModified>
	  <size>746935</size>
	  <format>PDF</format>
	  <version>1.6</version>
	  <status>Well-Formed, but not valid</status>
	  <sigMatch>
	  <module>PDF-hul</module>
	  </sigMatch>
	  <messages>
	   <message offset="422" severity="error" id="PDF-HUL-29" infoLink="https://github.com/openpreserve/jhove/wiki/PDF-hul-Messages#pdf-hul-29">Invalid page tree node</message>
	  </messages>
	  <mimeType>application/pdf</mimeType>
	  <properties>
	   <property>
	    <name>PDFMetadata</name>
	    <values arity="List" type="Property">
	    <property>
	     <name>Objects</name>
	     <values arity="Scalar" type="Integer">
	      <value>0</value>
	     </values>
	    </property>
	    <property>
	     <name>FreeObjects</name>
	     <values arity="Scalar" type="Integer">
	      <value>22</value>
	     </values>
	    </property>
	    <property>
	     <name>IncrementalUpdates</name>
	     <values arity="Scalar" type="Integer">
	      <value>0</value>
	     </values>
	    </property>
	    <property>
	     <name>DocumentCatalog</name>
	     <values arity="List" type="Property">
	     <property>
	      <name>PageLayout</name>
	      <values arity="Scalar" type="String">
	       <value>SinglePage</value>
	      </values>
	     </property>
	     <property>
	      <name>PageMode</name>
	      <values arity="Scalar" type="String">
	       <value>UseNone</value>
	      </values>
	     </property>
	     </values>
	    </property>
	    <property>
	     <name>XMP</name>
	     <values arity="Scalar" type="String">
	      <value>&lt;x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.4-c006 80.159825, 2016/09/16-03:31:08        "&gt;
	   &lt;rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"&gt;
	      &lt;rdf:Description rdf:about=""
	            xmlns:xmp="http://ns.adobe.com/xap/1.0/"
	            xmlns:dc="http://purl.org/dc/elements/1.1/"
	            xmlns:pdf="http://ns.adobe.com/pdf/1.3/"
	            xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"&gt;
	         &lt;xmp:CreateDate&gt;2009-05-05T13:15:43Z&lt;/xmp:CreateDate&gt;
	         &lt;xmp:CreatorTool&gt;wPDF by WPCubed GmbH&lt;/xmp:CreatorTool&gt;
	         &lt;xmp:ModifyDate&gt;2017-06-07T11:30:53-04:00&lt;/xmp:ModifyDate&gt;
	         &lt;xmp:MetadataDate&gt;2017-06-07T11:30:53-04:00&lt;/xmp:MetadataDate&gt;
	         &lt;dc:format&gt;application/pdf&lt;/dc:format&gt;
	         &lt;dc:description&gt;
	            &lt;rdf:Alt&gt;
	               &lt;rdf:li xml:lang="x-default"/&gt;
	            &lt;/rdf:Alt&gt;
	         &lt;/dc:description&gt;
	         &lt;dc:creator&gt;
	            &lt;rdf:Seq&gt;
	               &lt;rdf:li/&gt;
	            &lt;/rdf:Seq&gt;
	         &lt;/dc:creator&gt;
	         &lt;dc:title&gt;
	            &lt;rdf:Alt&gt;
	               &lt;rdf:li xml:lang="x-default"/&gt;
	            &lt;/rdf:Alt&gt;
	         &lt;/dc:title&gt;
	         &lt;pdf:Keywords/&gt;
	         &lt;pdf:Producer&gt;wPDF - http://www.wptools.de&lt;/pdf:Producer&gt;
	         &lt;xmpMM:DocumentID&gt;uuid:ee6038f0-d229-4f7a-bb55-54c3afff518c&lt;/xmpMM:DocumentID&gt;
	         &lt;xmpMM:InstanceID&gt;uuid:e409a326-cd7b-4544-a8e4-e32eadd12d3b&lt;/xmpMM:InstanceID&gt;
	      &lt;/rdf:Description&gt;
	   &lt;/rdf:RDF&gt;
	&lt;/x:xmpmeta&gt;</value>
	     </values>
	    </property>
	    </values>
	   </property>
	  </properties>
	 </repInfo>
	</jhove>
	


------------------
Notes on the error
------------------




------------------------------
Related errors by source files
------------------------------

::

	JHOVE:	Invalid page tree node

Notice: any operation suggested on this page should be carefully considered before use, as this article is in continuous development. Data is available at https://github.com/Digital-Preservation-Finland/knowledge-base.