Object has an unrecognised Subtype

Classification

Validator	Validator version	Error message type
Ghostscript	10.06.0

File format	Version	Specification	Description	Location
application/pdf	1.4			OPF format-corpus

Analyses

Possible solutions

Output example

The following errors were encountered at least once while processing this file:
        xref table was repaired
        Object has an unrecognised Subtype
        Incorrect /Length for stream object

   **** This file had errors that were repaired or ignored.
   **** 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 1.
Page 1
Loading font Times-Italic (or substitute) from /opt/ghostscript-10.06/share/ghostscript/Resource/Font/NimbusRoman-Italic

Notes on the error

Related errors by source files

Ghostscript:    Incorrect /Length for stream object
Ghostscript:    Object has an unrecognised Subtype
Ghostscript:    xref table was repaired
JHOVE:  Invalid object definition
JHOVE:  No document catalog dictionary

Notice: any operation suggested on this page should be carefully considered before use, as this article is in continuous development.