[Printing-architecture] better support for 203dpi label printer

YaoCL chunlinyao at gmail.com
Fri Aug 12 11:13:36 UTC 2016


CUPS support 203dpi label printer, when print from pdf to label printer, cups use gstoraster to rasterlizing pdf.
as discussed in <http://bugs.ghostscript.com/show_bug.cgi?id=696758> due to low resolution of 203dpi and any-part-of-pixel rule,
the produced barcode may scannable. Ghostscript has a operator to control center-of-pixel rule  or any-part-of-pixel rule, which is `0 .setfilladjust`.
I tested a pdf with and without this operator, and checked the result raster files. with this operator the barcode is more accurate.

Can we add a option to enable or disable this adjustment?


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