Duplicate named fonts

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irenefrie
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Joined: Thu Mar 22, 2012 4:41 pm

Duplicate named fonts

Post by irenefrie »

In my FONTS folder on my EHD (external hard drive) I have many fonts of the same name, but with different extensions, example .ttf and .otf. Should I delete the .ttf fonts and just keep the .otf fonts to bring into Maintype?
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Last edited by Bhikkhu Pesala on Sat May 22, 2021 9:52 pm, edited 1 time in total.
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Bhikkhu Pesala
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Re: Duplicate named fonts

Post by Bhikkhu Pesala »

Impossible to say without knowing the differences between the fonts.

I would suggest importing a few, examining them in MainType and then deciding which is better.

Look at licensing information, embedding rights, glyph coverage, and OpenType features. The extension does not mean much.
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Erwin Denissen
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Re: Duplicate named fonts

Post by Erwin Denissen »

There are many web pages that cover this topic, but most people don't understand what they are talking about, so most of that information is incorrect, and people continue to repeat that misleading information.

Here is a topic that tries to explain the differences between font file extensions and internal bezier formats:
What's the Difference Between TrueType and OpenType Fonts?
Erwin Denissen
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irenefrie
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Re: Duplicate named fonts

Post by irenefrie »

Thank you for the article, which is somewhat confusing for me as I have a lot to learn and understand.

The 'Summary' in the article says: Pure TrueType fonts are legacy and should be avoided. Does that mean any font marked TRUETYPE in MainType is an old font and may not work/print correctly?

I have lots and lots of old fonts that I have collected over the years and only now wanting to organize them, but should avoid downloading any more TRUETYPE fonts, if available.

I have lots of OpenType TT; OpenType CFF and OpenType Collection TT which I presume as more recent and OK to keep and organize.

Thank you so much for you help.

Irene
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Re: Duplicate named fonts

Post by Erwin Denissen »

As Bhikkhu Pesala already told you, it is not possible to determine which one is best, or if they are equal, without inspecting the inside of both fonts.

Let me know if you see room for improvement in the article, I am a technician, not a writer ;-)

You can either add them to MainType and see what font information both contain, or use FontCreator to further inspect both fonts. Or just contact the font vendor and ask them for advise.

If the font is made recently, then most likely both are equal, except one uses quadratic and the other cubic bezier curves for the glyph outlines. Then maybe hinting could be a deciding factor, but that also depends on the way you intent to use the font. On a Mac both formats then should work just fine. On a Window PC the OpenType TT probably works best.
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irenefrie
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Re: Duplicate named fonts

Post by irenefrie »

Thank you. Irene
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