Merging fonts

[Java Dev]

Hello,

I am a Java developer with some years of experience but a total newbie in the Font world. Right now I am going to start working in an app to merge two different Fonts. I would like to know what are the steps to do this, and if it is possible to do it using SFNTLY . At the moment I am stuck, and any help, suggestion or any reference that I could read would be much appreciated.

Thanks in advance!

[Schwanitz, Bill]

Hi,

 

Merging fonts… this is a pretty difficult problem. Some considerations:

-          What glyph do you keep if the same Unicode codepoint is referenced in both font’s CMAP tables?

-          Are you contemplating keeping OpenType features? Merging the GSUB and GPOS tables will be challenging.

-          How about kerning? Are you planning to keep the KERN table and kerning pairs in the GPOS table?

 

SFNTLY doesn’t really help with any of these issues. IMHO, it’s going to take a good bit of new code to use the sfntly library to merge fonts?

 

Just for my education, why do you want to merge two different fonts?

 

Cheers,

Bill

[Brian Stell]

There are a lot of technical details that need to be considered:

• design space (eg, 2048)
• ascender heights, descender heights, bounding boxes, 
• stem widths (weight)
• slant
• style