Copyfish is a browser extension software for Google Chrome and Firefox that allows users to copy and paste or copy and translate text from within images.
"Images" come in all kinds of forms: photographs, charts, diagrams, screenshots, PDF documents, comics, error messages, memes, Flash, and subtitles in YouTube movies.
[1][2] After a user marks the text in an image, Copyfish extracts it from a website, video or PDF document.
[5][6] Copyfish is not only used in Western countries but despite being available only with an English user interface, is used by many Chinese and Hindi-speaking Chrome users.
[7][8] The software is published under the GPL open-source license and hosted on GitHub.