OTF with TTF curves

1

Hi,

I would like to produce a .OTF but with TrueType curves inside. Any clues, ideas, tools or scripts that would be helpful?

Thanks
H

2

An OTF file with TrueType curves is a TTF file. Or are there any specific reasons why you cannot use a TTF file?

3

An OTF file with TrueType curves is a TTF file.

I am aware that this ist the case.
And yes there are client reasons that are far to complicated to explain here.
Any ideas what to do?

4

you don’t need any tools at all, produce .ttf and rename to .otf :slight_smile:

1 Like
5

I suspect this is a misunderstanding on the client side. TrueType files (TTF) were distinct from OTF files in the past in ways other than just the curves, but modern TTF files are OpenType fonts just like OTF files are OpenType fonts. The remaining difference is the way that curves are stores.

And, as Luc(as) describes, most tools nowadays don’t care about the file name extension (.ttf or .otf) and instead just look at the contents of the file to determine whether the font contains TrueType/quadratic curves or PostScript/CFF/cubic curves.

1 Like
6

Thanks. This might be a fix easy enough even I might be able to do it … :grinning:

7

Simply changing the file suffix of a TTF is allowed per the OpenType specification:

  • A file containing a single font resource with TrueType outlines should have either .OTF or .TTF extension. The choice between .OTF and .TTF may depend on the desire for backward compatibility on older systems or with previous versions of the font.
1 Like