Evenly add anchor points to a line

For a straight line: Object > Path > Add anchor points.

If it's not a straight line or you want anything special, please describe.

Please could you also post a screenshot of your line and then tell us more specifically what kind of outcome you want?

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

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what app?