How to Preserve Tabular Lining for OpenType Fonts in EPUB Exports from InDesign

[Marc27572159dpva]

I find that InDesign's EPUB export engine ignores Tabular Lining setting (for Opentype Gotham in this case). It seems that EPUB only supports one default setting as custom fonts with only tabular default, preserve this in EPUB.
Any ideas on how I would preserve the tabular setting in EPUB for Gotham?
Changing font is not an option.
Tabular Lining is used on numbers in correctly constructed tables.

Thank you 

<Title renamed by MOD>

[Abhishek Rao]

Hi @Marc27572159dpva,  

I understand how important it is to preserve the Tabular Lining setting, especially for numbers in your EPUB export. Could you kindly share your InDesign version and operating system details? Also, if possible, please provide screenshots of your settings so I can get a better understanding of the issue. 

In the meantime, try adjusting the export options to ensure the font's OpenType features are properly embedded in the EPUB. Depending on your settings, tweaking the export setup or using a different method to handle typography in EPUB might resolve the issue. 

Looking forward to your response!

Best,  
Abhishek Rao

[Marc27572159dpva]

Thank you Abhishek,

I am running 19.0.1 on Windows 10

These are the settings I use (please let me know if you need other specifics).
Can you suggest which export options I should try and adjust?

Example of how a table with Tabular Lining looks in EPUB export:

Thank you again for you help

/Marc

[James Gifford—NitroPress]

EPUB and tabs don't really get along. Tabs are not supported at all in reflowable EPUB, and are emulated with cranky, convoluted code in fixed-page (FXL) export. (EPUB is basically a packaged website using HTML/CSS; HTML doesn't support tabs in any way.)

The only reliable way to manage horizontally structured text is with a table, with or without using invisible table lines.

FXL is also an obsolete and deprecated export type. While reflowable export takes added time and skill, it's the better export mode for any "text" books. Among other problems, FXL does not support any layout modifications; you get what you get or you start over. Reflowable EPUB allows considerable control using both InDesign settings and CSS style modifications.