Attempt to dereference a free object

Classification

Validator

Validator version

Error message type

Ghostscript

10.06.0

File format

Version

Specification

Description

Location

application/pdf

1.3

OPF

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

No remediation determined. All solutions are listed here.

Note

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

Output example

The following errors were encountered at least once while processing this file:
        Attempt to dereference a free object

   **** This file had errors that were repaired or ignored.
   **** The file was produced by:
   **** >>>> Toolkit http://www.activepdf.com <<<<
   **** Please notify the author of the software that produced this
   **** file that it does not conform to Adobe's published PDF
   **** specification.


GPL Ghostscript 10.06.0 (2025-09-09)
Copyright (C) 2025 Artifex Software, Inc.  All rights reserved.
This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
see the file COPYING for details.
Processing pages 1 through 18.
Page 1
Loading font F3 (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Loading font F3 (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Loading font Helvetica-Bold (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Bold
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Page 9
Page 10
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Loading font Symbol (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/StandardSymbolsPS
Page 11
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Loading font Symbol (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/StandardSymbolsPS
Page 12
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Page 13
Page 14
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Loading font Symbol (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/StandardSymbolsPS
Page 15
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Loading font Symbol (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/StandardSymbolsPS
Page 16
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Page 17
Loading font Helvetica (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusSans-Regular
Page 18

The following warnings were encountered at least once while processing this file:
        A Font key in a Resources dictionary has a value of the wrong type

Notes on the error