[gs-bugs] [Bug 689875] New: character names which are binary strings (Type 3 fonts)

[bugs.ghostscript.com-bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=689875

           Summary: character names which are  binary strings (Type 3 fonts)
           Product: Ghostscript
           Version: 8.62
          Platform: PC
               URL: ftp.jouve.fr
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P4
         Component: PDF Interpreter
        AssignedTo: alex.cherepanov at artifex.com
        ReportedBy: dbioret at jouve.fr
         QAContact: gs-bugs at ghostscript.com


We have a Pdf file s_LHS1H015.pdf. At page 1035, ghostscript exits with an error
: "unknown operator
File has an unbalanced >> (close dictionary)
...
"

Into this page, there is a Type 3 font named "T1" with characters named :
/^B /^C  .... /^G
I renamed these characters: /^B -> /B
/^C -> /C
...
/^G -> /G

and the new pdf file (LHS1H015.pdf) is processed correctly by Ghostscript.
It seems that binary characters into glyph names are not allowed by Ghostscript.

Pdf objects in the original file s_LHS1H015.pdf:

3929 0 obj^M<< /Type /Encoding /Differences^M[ 1 /, /^B /^C /^E /^F /^H /^D
/^G^M]^M>>^Mendobj^M

4125 0 obj^M<< /^G 5693 0 R /^H 5301 0 R /, 4321 0 R /^B 4517 0 R /^C 4713 0 R
/^D 5497 0 R /^E 4909 0 R /^F 5105 0 R^M>>^Mendobj

After modifications (file LHS1H015.pdf):

3929 0 obj^M<< /Type /Encoding /Differences^M[ 1 /, /B /C /E /F /H /D
/G^M]^M>>^Mendobj

4125 0 obj^M<< /G 5693 0 R /H 5301 0 R /, 4321 0 R /B 4517 0 R /C 4713 0 R /D
5497 0 R /E 4909 0 R /F 5105 0 R^M>>^Mendobj


Command line:

gs -r600 -dNOCIE -dDITHERPPI=85 -dNOPAUSE -dBATCH -sDEVICE=tiffg4 -dFirstPage=$N
BP -dLastPage=$NBP -sOutputFile=$NBP.tif LHS1H015.pdf
(NBP=1035)

The files "LHS1H015.pdf" and "s_LHS1H015.pdf" are at ftp.jouve.fr :

ftp ftp.jouve.fr
login : ghostjouve
passwd : jvegh2008 

get s_LHS1H015.pdf
get LHS1H015.pdf
bye



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