Auto-Kerning fails randomly in PaintShop Pro
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Hello all,
when I use Junicode in PaintShop Pro and enable Auto-Kerning, displaying the font correctly often fails. It seems the characters are being set to a maximum kerning instead, so I see only the first letter, the rest of the text is far outsides off the screen. I have no idea, wether this is a PSP bug or a missing font feature.
Has anyone an idea about this?
Btw, I already wrote a full forum post in Corel's forum (no reply so far), but it includes screenshots and a video:
http://forum.corel.com/EN/viewtopic.php?f=56&t=61325
For any advise many thanks in advance.
All I can suggest is to try the current release (0.900). I can't check every application, but only the major ones. All I can say is that Junicode is standards-compliant, and it passes all the major validation tests I'm able to put it through.
Since 0.900 the font behaves better: The kerning is not being set randomly to maximum values in PaintShop Pro (PSP) anymore. Instead, PSP does not apply an Auto-Kerning at all. I still suspect it is a problem with PSP.
I tested the font in several applications supporting Auto-Kerning (see the attachment). FontViewer fails as well, but also on some other fonts.
Doing a little research: One writeup I saw for FontViewer said that it has its own rendering engine. This rings alarm bells. It's hard to be sure of PaintShop Pro without having it to test, but from various online articles it appears that it doesn't offer access to OpenType features. This suggests to me that it may be unable to access the GPOS kern feature in Junicode, but rather (if it supports kerning at all), only the obsolete "kern" table, which Junicode doesn't have. I don't know about PhotoLine and Paint.net, but LibreOffice, Inkscape and Gimp, Open Source standards, will be using the Harfbuzz layout engine. which currently is the best available (it is also used by Firefox and, I think, Chrome). You should also get good results with Adobe apps and with any app that uses the Microsoft- and Mac-standard layout engines (and accesses all its features!).