Copyfish is a browser extension software for

Google Chrome Google Chrome is a cross-platform web browser developed by Google. It was first released in 2008 for Microsoft Windows, built with free software components from Apple WebKit and Mozilla Firefox. Versions were later released for Linux, macOS ...

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 Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. ...

documents, comics, error messages, memes, Flash, and subtitles in YouTube movies. After a user marks the text in an image, Copyfish extracts it from a website, video or PDF document. Copyfish was first published in October 2015. 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. The software is published under the GPL open-source license and hosted on GitHub.

References

Google Chrome extensions Free Firefox WebExtensions {{web-software-stub