export font, 1 pixel vertical offset

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1

Hello,

I loaded a font into the application, exported it back without any modifications, and notice a 1-pixel vertical offset when using the two fonts.

attached are the old vs. new screenshots, pasted into Paint (excuse the archaic methods, i’m a newbie :laughing: ).

between the top of the character and the bounding box, there are:

  • 4 orange pixels in the “old.png”
  • 3 orange pixels in the “new.png”

old:
old.png
new:
new.png
no alterations were made whatsoever, so I was looking at export options, but couldn’t find anything.

would be grateful for any ideas.
Thanks!

2

Check Export Settings, Hinting. Try “Keep Original.”

3

thanks for the suggestion.
tried the various hinting options, they did impact the result, each with pros and cons.

Outcome as follows:

  • Keep original: rendering quality of the font is high, however there is 1 pixel vertical offset as described previously
  • No hinting: the pixel offset is corrected, however the rendering quality has dropped significantly, blurry and hardly readable in places
  • Auto-hinting: the pixel offset is corrected, with a rendering slightly improved from “no hinting”, yet still poor compared to “Keep original”

Any way to maintain the hinting for rendering quality, yet avoid the 1px offset side-effect?

4

Check to see if the font metrics have been changed. Has the default line-spacing increased or decreased, or is it unchanged?

Compare the font properties for the original font and the exported font.

5

in the Font properties > Master tab, all the values matched except the hinting section (the limits were different).
i altered the exported font to have the same hinting limits and values as the original font, and the outcome is the same as “auto-hinting”, meaning the pixel offset is corrected, but the rendering is poor compared to the “keep original” export :confused: