Ghostscript 9.27 resolves a different - and wrong - bounding box for the attached PDF file. This was reported at https://bugs.debian.org/927429 along with below test output, and I can confirm reproducibility of the 9.27 part: [stretch] $ gs -sDEVICE=bbox -dBATCH -dNOPAUSE o.pdf GPL Ghostscript 9.26 (2018-11-20) Copyright (C) 2018 Artifex Software, Inc. All rights reserved. This software comes with NO WARRANTY: see the file PUBLIC for details. Processing pages 1 through 1. Page 1 %%BoundingBox: 153 716 159 722 %%HiResBoundingBox: 153.323995 716.777978 158.759995 721.277978 [buster] $ gs -sDEVICE=bbox -dBATCH -dNOPAUSE o.pdf GPL Ghostscript 9.27 (2019-04-04) Copyright (C) 2018 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 %%BoundingBox: 148 713 153 717 %%HiResBoundingBox: 148.283995 713.195978 152.855995 716.975978
Created attachment 17352 [details] PDF file containing a single glyph.
I suspect it's a another instance of: https://bugs.ghostscript.com/show_bug.cgi?id=700952
Current code produces the same answer as 9.26. It is indeed a duplicate of bug #700952. *** This bug has been marked as a duplicate of bug 700952 ***