.. _818f2abe-9746-4ba1-98cc-9123ac140023:

=============
No PDF header
=============

.. 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
     - 1.2
     - 
     - 
     - `OPF <https://github.com/openpreserve/format-corpus/tree/master/jhove-errors/PDF-HUL-137/reserve3.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>2026-06-15T15:19:08+03:00</date>
	 <repInfo uri="/corpus/format-corpus/jhove-errors/PDF-HUL-137/reserve3.pdf">
	  <reportingModule release="1.12.7" date="2024-08-22">PDF-hul</reportingModule>
	  <lastModified>2026-06-15T13:22:13+03:00</lastModified>
	  <size>157312</size>
	  <format>PDF</format>
	  <status>Not well-formed</status>
	  <messages>
	   <message offset="0" severity="error" id="PDF-HUL-137" infoLink="https://github.com/openpreserve/jhove/wiki/PDF-hul-Messages#pdf-hul-137">No PDF header</message>
	  </messages>
	  <mimeType>application/pdf</mimeType>
	 </repInfo>
	</jhove>
	


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




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

::

	Ghostscript:	File has some garbage before %PDF-
	JHOVE:	No PDF header
	veraPDF:	A CIDSet entry in the Font descriptor is missing or does not correctly identify all glyphs present in the embedded font subset and used for rendering
	veraPDF:	Actual length of the stream (.* byte(s)) does not match the value of the Length key in the Stream dictionary (.* byte(s))
	veraPDF:	Annotation flags are either missing or set the annotation to be hidden/invisible or non-printable (F = null, Print = null, Hidden = null, Invisible = null, NoView = null)
	veraPDF:	Annotation.s color (C present = true) or interior color (IC present = false) is used without specifying RGB-based destination output profile
	veraPDF:	A property is either not defined in XMP Specification, or is not defined in any of the extension schemas
	veraPDF:	can not locate xref table
	veraPDF:	DeviceGray colour space is used without output intent profile
	veraPDF:	DeviceRGB colour space is used without RGB output intent profile
	veraPDF:	End of file is reached
	veraPDF:	Extra spacings or missing EOL characters around indirect object/generation number or keywords 'obj' and 'endobj'
	veraPDF:	File header .*%PDF-1..* (offset = .*) starts at non-zero offset or does not match the pattern %PDF-1.n, where 'n' is a single digit number between 0 and 7
	veraPDF:	File header .*%PDF-*.* (offset = .*) starts at non-zero offset or does not match the pattern %PDF-n.m
	veraPDF:	Missing ID in the document trailer
	verapdf:	org.verapdf.pd.font.cmap.CMapParser getBfrangeEndFromBytes WARNING: Incorrect bfrange in toUnicode CMap: bfrange contains more than 256 code.
	veraPDF:	Pages not found
	veraPDF:	Real value .* out of range
	veraPDF:	The document catalog dictionary doesn't contain metadata key or metadata stream dictionary does not contain either entry Type with value /Metadata or entry Subtype with value /XML
	veraPDF:	The font program is not embedded
	veraPDF:	The value of CreationDate entry from the document Info dictionary and its matching XMP property .*xmp:CreateDate.* are not equivalent (Info /CreationDate = D:.*, XMP xmp:CreateDate = .*)
	veraPDF:	The value of ModDate entry from the document Info dictionary and its matching XMP property .*xmp:ModifyDate.* are not equivalent (Info /ModDate = D:.*, XMP xmp:ModifyDate = .*)
	veraPDF:	XMP property does not correspond to type null

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.