PDFs produced with TCPDF and custom fonts won't print on printers using PostScript drivers

[weiweihuanghuang]

When I generate a pdf with TCPDF and try to print using a PostScript printer in PostScript mode (instead of PCL), I get this error:

ERROR: invalidfont
OFFENDING COMMAND: xshow

STACK:
[7.28 5.68 7.25 5.68 7.25 5.68 7.43 5.68 7.25 5.68 6.95 6.2 6.25 5.68 6.65 5.68 6.95 5.68 0.0]
(!"#"$"%"&"’()"*"+’)
{/RRCustomProcs /Procset findresource /logusername get exec }
true
-1
0

It seems xshow is a command that didn't exist on older versions of PostScript according to this answer.

I've also tested the same font in PDFs generated with desktop publishing software (Adobe InDesign, Illustrator) and the PDFs prints fine in PostScript mode.

Any ideas how to make the a work with TCPDF?

[ampaze]

Having the same problem.

@weiweihuanghuang Where you able to find further information?

[ampaze]

It does work for me when not subsetting the custom font. But still: when using freesans it works even when subsetting. So there must be some difference in the way the font definition files were generated?