Strange kerning behavior in printing

Baruch Gorkin's picture

I am testing a kernig table I just built into my font and came across the following problem:

Character spacing in InDesign on screen seems to correspond to the kerning I built into the font (at least when zoomed-in). When I export the file as a pdf and print from Acrobat, all is well... But when I print directly from InDesign, all kerning seems to disappear or get highly distorted. Any ideas what might cause this? [Just in case it matters, the kerning is RTL for Hebrew].

On a related topic, what do people here find to be the best way to proof fonts in text sizes? I see discernable diferences in the appearance (overall darkness) of the same font printed on the same 1200 dpi laser when I switch from .otf to .ttf formats, and InDesign vs Acrobat (in addition to the specific kerning issue I am having now). Short of doing press-proofs, what is the best proofing workflow?

John Hudson's picture

If exporting to PDF works and prints fine, the problem may be with your printer driver. Do you have any other printers to which you can print? Can you print to a PDF instead of using InDesign's export feature?

Are you using a kern table for kerning, or OpenType GPOS kerning?

Baruch Gorkin's picture

Thanks John,

I did test it on a two different printers (one HP, one Xerox) and the sorry results were the same. :(
I am using OpenType GPOS for kerning.

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