An attempt to decompress the sample file from the bug 689764 converts /#23V2xIeZNLf4zwH5HG9MA8vD to /#V2xIeZNLf4zwH5HG9MA8vD
Alex owns the PS files
Remove '#' from the list of characters that may occur in PDF names unescaped. The following patch is committed as a rev. 8649. http://ghostscript.com/pipermail/gs-cvs/2008-April/008234.html