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This article shows you how to use gImageReader on Linux to extract text from images and PDF. The content is concise and easy to understand. It will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

GImageReader is a GUI tool that uses the Tesseract OCR engine to extract text from images and PDF files in Linux.

GImageReader is a front end of the Tesseract open source OCR engine. Tesseract was originally developed by HP and then opened in 2006.

Basically, the OCR (Optical character recognition) engine allows you to scan text from a picture or file (PDF). By default, it can detect several languages and also supports scanning through Unicode characters.

However, Tesseract itself is a command-line tool without any GUI. So, gImageReader addresses this, allowing any user to use it to extract text from images and files.

Let me focus on something about it and talk about my experience during testing.

GImageReader: a cross-platform Tesseract OCR front end

To simplify things, gImageReader is very convenient when extracting text from PDF files or images that contain any type of text.

Whether you need it for spell checking or translation, it should be useful for a specific group of users.

Summarize the features in a list, and here are some things you can do with it:

Add PDF documents and images from disks, scanning devices, clipboards, and screenshots

Can rotate the image

Commonly used image controls to adjust brightness, contrast, and resolution.

Scan the image directly through the application

Ability to process multiple images or files at once

Manually or automatically identify area definitions

Identify plain text or hOCR documents

The editor displays the recognized text

Can check the spelling of the extracted text

Convert / export from hOCR files to PDF files

Export the extracted text to a .txt file

Cross-platform (Windows)

Install gImageReader on Linux

Note: you need to install the Tesseract language pack to detect from the images / files in the software manager.

You can find gImageReader in the default repositories of some Linux distributions such as Fedora and Debian.

For Ubuntu, you need to add a PPA and then install it. To do this, here's what you need to type in the terminal:

Sudo add-apt-repository ppa:sandromani/gimagereadersudo apt updatesudo apt install gimagereader

You can also find it in openSUSE's build service, and Arch Linux users can find it in AUR.

Links to all repositories and packages can be found on their GitHub pages.

Experience in using gImageReader

GImageReader is a very useful tool when you need to extract text from an image. When you try to extract text from a PDF file, it works very well.

For images taken from smartphones, the detection is close, but a little inaccurate. Maybe when you scan, it might be better to recognize characters from the file.

So you need to try it for yourself to see if it works well for you. I tried it on Linux Mint 20.1 (based on Ubuntu 20.04).

I only encountered a problem of managing the language from the settings, and I didn't get a quick solution. If you encounter this problem, you may need to troubleshoot it and learn more about how to solve the problem.

The above is how to use gImageReader to extract text from images and PDF on Linux. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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