This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
Latest Version Dependencies status unknown Test status unknown Test coverage unknown
Project Description

OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched or copy-pasted.

ocrmypdf                      # it's a scriptable command line program
   -l eng+fra                 # it supports multiple languages
   --rotate-pages             # it can fix pages that are misrotated
   --deskew                   # it can deskew crooked PDFs!
   --title "My PDF"           # it can change output metadata
   --jobs 4                   # it uses multiple cores by default
   --output-type pdfa         # it produces PDF/A by default
   input_scanned.pdf          # takes PDF input (or images)
   output_searchable.pdf      # produces validated PDF output

Main features

  • Generates a searchable PDF/A file from a regular PDF
  • Places OCR text accurately below the image to ease copy / paste
  • Keeps the exact resolution of the original embedded images
  • When possible, inserts OCR information as a “lossless” operation without rendering vector information
  • Keeps file size about the same
  • If requested deskews and/or cleans the image before performing OCR
  • Validates input and output files
  • Provides debug mode to enable easy verification of the OCR results
  • Processes pages in parallel when more than one CPU core is available
  • Uses Tesseract OCR engine
  • Supports more than 100 languages recognized by Tesseract
  • Battle-tested on thousands of PDFs, a test suite and continuous integration

For details: please consult the release notes.

Motivation

I searched the web for a free command line tool to OCR PDF files on Linux/UNIX: I found many, but none of them were really satisfying.

  • Either they produced PDF files with misplaced text under the image (making copy/paste impossible)
  • Or they did not handle accents and multilingual characters
  • Or they changed the resolution of the embedded images
  • Or they generated ridiculously large PDF files
  • Or they crashed when trying to OCR some of my PDF files
  • Or they did not produce valid PDF files (even though they were readable with my current PDF reader)
  • On top of that none of them produced PDF/A files (format dedicated for long time storage)

…so I decided to develop my own tool (using various existing scripts as an inspiration).

Installation

Linux, UNIX, and macOS are supported. Windows is not directly supported but there is a Docker image available that runs on Windows.

Users of Debian 9 or later or Ubuntu 16.10 or later may simply apt-get install ocrmypdf.

For everyone else, see our documentation for installation steps.

Languages

OCRmyPDF uses Tesseract for OCR, and relies on its language packs. For Linux users, you can often find packages that provide language packs:

# Display a list of all Tesseract language packs
apt-cache search tesseract-ocr

# Debian/Ubuntu users
apt-get install tesseract-ocr-chi-sim  # Example: Install Chinese Simplified language back

You can then pass the -l LANG argument to OCRmyPDF to give a hint as to what languages it should search for. Multiple languages can be requested.

Documentation and support

Once ocrmypdf is installed, the built-in help which explains the command syntax and options can be accessed via:

ocrmypdf --help

Our documentation is served on Read the Docs.

If you detect an issue, please:

  • Check whether your issue is already known
  • If no problem report exists on github, please create one here: https://github.com/jbarlow83/OCRmyPDF/issues
  • Describe your problem thoroughly
  • Append the console output of the script when running the debug mode (-v 1 option)
  • If possible provide your input PDF file as well as the content of the temporary folder (using a file sharing service like Dropbox)

Press & Media

Disclaimer

The software is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

Release History

Release History

4.5

This version

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4.4.2

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4.4.1

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4.4.post1

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4.3.5

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4.3.4

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4.3.3

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4.3.2

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4.3.1

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4.3

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4.2.5

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4.2.4

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4.2.3

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4.2.2

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4.2.1

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4.2

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4.2rc1

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4.1.4

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4.1.4rc1

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4.1.3

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4.1.3rc1

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4.1.2

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4.1.1

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4.1

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4.1rc1

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4.0.7

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4.0.5

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4.0.3

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4.0.2

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4.0.1

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4.0

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3.2.1

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3.2

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3.1.1

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3.1

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3.0

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3.0rc9

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3.0rc8

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3.0rc7

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3.0rc6

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ocrmypdf-4.5-py34-none-any.whl (52.6 kB) Copy SHA256 Checksum SHA256 py34 Wheel Feb 14, 2017
ocrmypdf-4.5.tar.gz (7.4 MB) Copy SHA256 Checksum SHA256 Source Feb 14, 2017

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