Stop Transcribing: Use ocrmypdf — A Tutorial on Optical Character Recognition with Examples”

igBerroteran
2 min readJun 4, 2023

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“Efficiently extract text from scanned documents using ocrmypdf”

Transcribing text from scanned documents can be a time-consuming task. Fortunately, there’s a powerful tool called ocrmypdf that can automate the process of optical character recognition (OCR). In this tutorial, we will explore the features of ocrmypdf and learn how to use it effectively to extract text from scanned documents. Say goodbye to manual transcription!

What is ocrmypdf?
Ocrmypdf is an open-source tool that performs OCR on PDF files, allowing you to convert scanned documents into searchable and selectable text. It utilizes advanced OCR engines like Tesseract and optimizes the OCR process for accuracy and speed. By leveraging ocrmypdf, you can extract text from scanned documents, making them editable and easily searchable.

Installing ocrmypdf
To get started, let’s install ocrmypdf on your system. Follow these steps:

1. Open a terminal window.
2. Ensure that you have Python and pip installed by running the following command:
```
python — version
pip — version
```
3. Install ocrmypdf using pip by running:
```
pip install ocrmypdf
```
4. Wait for the installation to complete.

Using ocrmypdf
Now that you have ocrmypdf installed, let’s dive into its usage. We will cover the basic command syntax and explore some examples.

The basic command syntax for ocrmypdf is as follows:
```
ocrmypdf [options] input.pdf output.pdf
```

Here are a few examples to showcase ocrmypdf’s capabilities:

1. Simple OCR conversion:
```
ocrmypdf input.pdf output.pdf
```
This command will perform OCR on `input.pdf` and generate a new PDF file named `output.pdf` with searchable and selectable text.

2. Preserving the existing text layer:
```
ocrmypdf — deskew — clean — output-type pdfa input.pdf output.pdf
```
This command will preserve the existing text layer while performing OCR. It also applies deskewing and cleaning techniques to enhance the OCR results. The output PDF will be in PDF/A format.

3. Applying language options:
```
ocrmypdf — language eng+deu input.pdf output.pdf
```
By specifying the language options, ocrmypdf can optimize OCR for specific languages. In this example, English (eng) and German (deu) are selected.

Ocrmypdf is a powerful tool that simplifies the process of extracting text from scanned documents through OCR. In this tutorial, we covered the basics of installing ocrmypdf and demonstrated its usage with various examples. Now, you can efficiently convert scanned documents into editable, searchable, and selectable text, saving you valuable time and effort.

Start using ocrmypdf today and unlock the potential of OCR for your document processing needs!

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igBerroteran

My journey summarized here: a curious mind exploring the realms of technology, language, and innovation. Join me as I unravel fascinating insights!