Copyfish: Copy, paste and translate text from any image, video or PDF.

How to use Copyfish?

  • 1. Install the extension and click the Copyfish icon in your Chrome browser.
  • 2. Select the area with the text (image, video, html5, ajax - Copyfish works with any input)
  • 3. Done! Copyfish extracts the text from the image, displays and translates it.

OCR’ed Text Overlay

Visualize the quality of the extracted text in seconds. Copyfish displays the OCR result in red on top of the original text in the image. We call this text overlay. And if you double-click the overlay, a copy of it opens in a new tab. That makes it easier to verify larger screenshots, as it avoids scrolling.

Free OCR and Data Extraction with Copyfish

Work with local images and PDF

You can drag & drop local images or PDF on your browser window and use Copyfish on these, just like you would with images on a website. For this to work, you need to allow Copyfish to access file URLs in the Chrome extension settings:

Free OCR and Data Extraction with Copyfish
Allow access to file URLs in Chrome. This settings is not available and not needed for Firefox as it allows access to file URLs by default.

Working with PDF

Copyfish works with PDF... the same way as normal websites.

Free OCR and Data Extraction with Copyfish

OCR with right-click

You can copy text from any image by right-clicking on it. If your mouse is on top of an image the "Copyfish Get text from image" option will show:

Copy text from any image by right-clicking on it

Two OCR Engines

Copyfish uses two different free OCR engines. Depending on what type of document you want to OCR, one or the other might work better for you.

Features of OCR Engine 1:

For even more OCR languages use Copyfish PRO.

Features of OCR Engine 2:

  • - Usually better at special characters OCR like @+-!"§$%&/()=...
  • - Usually better at single number OCR and alphanumeric OCR (e. g. SUDOKO, Dot Matrix OCR, MRZ OCR,... )
  • - Language auto-detect (so it does not really matter what OCR language you select, as long as it uses Latin characters)
  • - Western Latin Character languages only (English, German, French,...)

This engine supports less languages, but is better at recognizing numbers and special characters such as *#+~#:?!... - so for example if you use Copyfish to get text from scanned addresses or invoices, try using OCR Engine 2. You can switch between both engines in on the Copyfish settings page.

For even better OCR quality use Copyfish PRO.

How to grab data from tables and receipts?

If you need to copy text from receipt scans, invoice PDFs or table screenshots, turn on the receipt scanning switch. This feature makes sure the data is returned correctly line by line, exactly as on the receipt.

Input language shortcuts

Do you need to switch between OCR languages often? Then use Input OCR Language Shortcuts. Copyfish allows you to add up to three OCR languages as shortcut to the user interface.

Free OCR and Data Extraction with Copyfish

Add Desktop OCR support

To add the free desktop OCR support, install the UI.Vision XModule (the link goes to our UI.Vision website). The XModule is a small app that helps Copyfish to take the screenshot. It is available for Windows, Mac and Linux. If you only want to OCR content inside the web browser, this is not required.
Important: You need at least the new XModule Version 2021-2 for the latest Copyfish version. So if you have an older XModule version installed, please upgrade. To upgrade, simply install the latest version from our website.

How to take desktop screenshots?

To trigger the desktop capture, right-click the Copyfish icon and select Desktop Text Capture. This screencast shows it:

A second method to take a desktop screenshots is to switch your browser to a "non-Web" tab. For example you can open a new blank tab, or go e. g. to chrome://extensions/ - then the Copyfish icon gets a "Desk" badge when you click on it. This "Desk" badge on the Copyfish icon means that Copyfish is in desktop OCR screenshot mode.

Use desktop screenshots even for websites

The "Always use Desktop OCR" settings makes Copyfish to use the desktop OCR screen grabber even when a website is open in the browser tab. Since then desktop screenshots are always used, the "Desk" badge is no longer shown on the Copyfish icon.

Browser keyboard shortcuts

The keyboard shortcuts work only after you activated the extension with a click on the extension icon. We know that this limits the usefulness of this feature, but this is a limitation of the browser extension API. We are working on adding a new feature that will then provide truly global shortcuts.

Do not confuse these keyboard shortcuts with the language quickselects "shortcuts". These are the buttons on the Copyfish window to change between OCR languages quickly.

For language learners

There are many translator addons available, but they only work with plain website text. Text inside images, in tricky Javascript/AJAX or in movie subtitles on Youtube or Youku is unreachable for them, but not for Copyfish. And if you want, Copyfish also translates the text for you right away. Extract text from videos - and translate it.

Especially for the subtitle translation use case, Copyfish has the “Do OCR” repeat feature: Mark the area of the subtitle once and then use the “Do OCR” repeat button to grab the text from this area repeatedly as you watch the movie. That function was inspired by the Chinese Pinyin subtitle translator app. Copyfish replaces this app with a cross-platform solution.

Tip 1: Using a small screen? -> Click the blue Copyfish title bar to shrink the Copyfish dialog. This hides the screenshot part of the Copyfish user interface.

Tip 2: Copyfish plays nice with all other translator extensions. So if you prefer to use your favorite tool, just disable the built-in translation.

Free OCR and Data Extraction with Copyfish

How to Translate Texts with Copyfish

One reason to extract text from images or PDFs is to translate them. For that Copyfish has a built-in translator. But sometimes you may want to use more specialized translation tools, like the Google Translate extension or even extensions custom-built for one language like the Zhongwen Popup Dictionary for Chinese translation. Copyfish supports them all, just turn on the Support popup dictionaries switch.

The Support popup dictionaries switch allows (translator) extensions to show their popups in the foreground. This feature works also with the new Desktop text capture of Copyfish (-> Right-click on the Copyfish icon). So now, you can grab text from the desktop, then use your favorite translator extension inside the Copyfish window on it.

Free OCR and Data Extraction with Copyfish

☛ Share Copyfish

The more people use Copyfish, the better it becomes over time. Please help making Copyfish better by sharing it on Facebook, Twitter,... - or, classic, by giving it a good rating on the Copyfish extension pages in the Chrome, Edge and Firefox addon galleries.

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Free RPA Software
Copyfish OCR Browser Extension
Selenium IDE
Try UI.Vision RPA, our OCR-powered Robotic Process Automation (RPA) software. It is available as free browser extension as RPA Chrome and RPA Firefox (OSI-certified Open-Source) plus computer-vision extension modules. UI.Vision RPA is fun to use - and its OCR screen scraping features are powered by the OCR API.

Do you have an OCR API question? Please email us or visit the OCR API Forum - we love to answer OCR questions.