Substituting One Font Species for Another

A variation on the old joke:

Patient:

I didn’t have the necessary PostScript font, so I used my TrueType version. The type reflowed and the line breaks are all wrong now.

Doctor:

Don’t do that.

When you collaborate on designs, try to avoid substituting a TrueType version of a font for a PostScript version, or vice versa. Don’t use an OpenType font instead of the file creator’s original font choice, despite your conviction that it’s somehow better. You may get lucky, but you’re still risking type reflow.

This is particularly treacherous if you move a job between platforms. A Windows font and its Macintosh namesake may both be PostScript, but that’s still no guarantee that they were created by the same foundry ...

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