A powerful optical character recognition (OCR) extension to capture and convert images to text

Latest Version

Version
0.4.2
Update
September 9, 2024
Size
2.54MiB
Developer
Category
Users
200,000+
Rating
4 ★
Manifest Version
3
Web Store Status
Languages Support
English
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Permissions
Storage
UnlimitedStorage
ActiveTab
Notifications
Scripting
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OCR - Image Reader Extension

This extension adds a toolbar button to your browser to perform OCR. When this action button is pressed, it allows the user to select a region in the currently active window. The extension captures the area and tries to recognize text inside this region using the internal powerful OCR engine (Tesseract engine). This extension uses the \"tesseract.js\" library that supports more than 100 languages, automatic text orientation, and script detection.

This extension loads the JS library on the page and removes it when you are done. This way, there is no long-term resource usage.

Notes:
1. On the first run, the extension might take a few minutes to fetch the training data from the internet. Since this resource is cached, all subsequent calls are going to be fast.
2. Optical character recognition (OCR) is slow, so this extension displays a progress bar for each detection module.
3. This extension does the OCR process offline. There is no server-side interaction. It only fetches the language training database once.
4. This tool can be used to extract the text content out of images, PDF documents, Powerpoint slides, or extract the content of a web page when user-section is forbidden.
5. If the text extraction confidence is low, the extension inverts the image and retries (particularly useful on the dark theme)
6. If the text extraction is not accurate, you can modify the image and drop it into the interface to retry.

Change Logs:
Version 0.2.4:
Supports browser-level page zooming and OS-level screen zooming
Adds image language detection (still beta) (slow operation)
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "version": "0.4.2", "name": "OCR - Image Reader", "description": "A powerful optical character recognition (OCR) extension to capture and convert images to text", "permissions": [ "storage", "unlimitedStorage", "activeTab", "notifications", "scripting" ], "optional_permissions": [ "clipboardWrite" ], "host_permissions": [ "https://tessdata.projectnaptha.com/*.gz", "https://github.com/naptha/tessdata/blob/gh-pages/*.gz?raw=true" ], "homepage_url": "https://webextension.org/listing/ocr.html", "background": { "service_worker": "worker.js" }, "icons": { "16": "/data/icons/16.png", "32": "/data/icons/32.png", "48": "/data/icons/48.png", "64": "/data/icons/64.png", "128": "/data/icons/128.png", "256": "/data/icons/256.png", "512": "/data/icons/512.png" }, "action": {}, "content_security_policy": { "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'" }, "web_accessible_resources": [{ "resources": ["/data/engine/index.html", "/data/inject/sandbox.html"], "matches": [""] }], "commands": { "_execute_action": {} }}
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How to download and manually install OCR - Image Reader extension for Chrome

Looking for a way to install OCR - Image Reader extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install OCR - Image Reader extensions manually, this article outlines two simple methods to effortlessly install OCR - Image Reader extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download OCR - Image Reader extension and manually install through Drag &Drop

If you ever need to manually install a OCR - Image Reader extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the OCR - Image Reader Extension by clicking the "Download CRX" button on the website.

Look for the OCR - Image Reader extension you wish to install. Go to the website and download the OCR - Image Reader extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for OCR - Image Reader extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the OCR - Image Reader extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download OCR - Image Reader extension for Chrome and install in Developer Mode

This is another method to install OCR - Image Reader extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the OCR - Image Reader extension file

Select and download the OCR - Image Reader extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the OCR - Image Reader extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your OCR - Image Reader extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the OCR - Image Reader extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install OCR - Image Reader extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Andrii Kosenko (ID: 00000055c876212f) Voted 5 ★ - Updated 11/10/2023 Superb! helpes a lot when you have to work with people who dont know about normal PDF thank you!

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Crazy “blahblah” Blah (ID: 0000005381aeed48) Voted 5 ★ - Updated 09/23/2023 Wish it was a little faster but it does what it supposed to do. thanks a million

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Beisat Oman (ID: 0000005dd4cc31fb) Voted 5 ★ - Updated 09/19/2023 Amazzing

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Glen Stewart (ID: 00000034e40c0b81) Voted 5 ★ - Updated 08/18/2023 Fabulous implementation. Works fine with Vivaldi. Solves a problem where a web page used Javascript to disable text copy for a VIN that was shown on a car sale web page. Why retype? Thanks so much!

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Jewel Deng (ID: 00000043dcce79bd) Voted 5 ★ - Updated 07/20/2023 works perfectly for browser images!