[0] https://typographica.org/on-typography/copyright-protection-...
[0] https://typographica.org/on-typography/copyright-protection-...
Will the bits/bytes of a TTF be different if two people produced identically the exact same shape of the letters?
EDIT: let me clarify a bit. The GP said that the shape of the letters is not copyrighted in the US. Which implies to me that if Helvetica has the exact shape of the letter "s" to be like so, and if I were to manually trace the exact same shape (curves, width, height of the letter, etc) that I can do that and resell it (or open source it)
What I'm asking is, what prevents someone from skipping the step all together of tracing every letter in the Helvetica alphabet and instead, just digitally copies the TTF font file?
Would the TTF font file I create from a manual tracing of the Helvetica alphabet be different than if I simply digitally copied the official Helvetica TTF file?
[0] https://www.fonts.com/font/monotype/helvetica-now/licenses#
Font tracing is usually done by printing out the character to be traced at very large scale -- I've seen about 12" x 12" -- and placing it directly on a large digitizing tablet. A sequence of strokes / points is collected for the outline of the character, and then curves of somewhat reduced degree are fit to those strokes / points to both reduce font data size and reduce the impact of errors, inaccuracies, and quantization in the data capture.
Even at this huge scale, and with this amount of effort, the outline of your character will be very close to -- visually identical to! -- the starting character, but not exact. As a result, the generated font program will be quite different. For example, it may use a different number of control points for equivalent curves.
Now, one can imagine automating this process differently: Take a font file, digitally render each character, perturb it a small amount, and resynthesize the strokes to generate a new, different program for a visually identical font. This is generally against the terms of service for the initial font, however, which would make it a legal matter...
I doubt there's anything in the ToS for most fonts prohibiting me from rendering a short story that just so happens to contain every character and post it online for everyone to enjoy. I couldn't possibly predict that my friend who doesn't even know the name of the font, let alone ever agreed to any ToS, would take that render and trace all the characters on it.
Note that I generically said "render", not image or raster, since from my understanding, an SVG or vector PDF render of the font (not embedded, but turned into paths) wouldn't be any more copyrightable than a raster, but far easier to clone.
I'd assume the license for viewing the file is implied, but I have no clue if it would hold up in court if you viewed the file -> traced the output (which is copying the typeface, not the font.)
If you copy by hand (at what size? at what accuracy? do you include the same hinting and ligatures?) the file will not be bit-for-bit identical. The foundry cannot sue.
What stops you from copying any copyright-protected software? Technically, usually, very little (sometimes DRM). But, mostly, its social/economic constraints like your (or your business’) particular tolerance for legal exposure.
Personally, I don't like the idea of selling fonts with costs governed by web page impressions, either, no matter how common it may be in the industry. I genuinely like having what I consider to be nice typefaces for my web sites, but this kind of licensing makes it incredibly impractical for me to use most commercial options.