文案是为了宣传商品、企业、主张或想法，在报章杂志、海报等平面媒体或电子媒体的图像广告、电视广告、网页横幅等使用的文稿或以此为业的人。

大部分文案是组织内部的雇员，包括广告公司、公关公司、公司的广告部门、大型商店、营售公司、广播公司、有线电视供应商，新闻业者、图书出版商、杂志业者等。文案撰稿人也可以是自由契约的独立承包商以对应各种客户。

Copywriting is written content conveyed through online media and print materials. Copy is a content primarily used for the purpose of advertising or marketing. This type of written material is often used to persuade a person or group as well as raise brand awareness.