diff --git a/README.rst b/README.rst
index 0aba0545e..80043ff7a 100644
--- a/README.rst
+++ b/README.rst
@@ -56,6 +56,7 @@ powerful tools.
 
 * `ImageMagick`_ converts the images between colour and greyscale.
 * `Tesseract`_ does the character recognition.
+* `Unpaper`_ despeckles and and deskews the scanned image.
 * `GNU Privacy Guard`_ is used as the encryption backend.
 * `Python 3`_ is the language of the project.
 
@@ -93,6 +94,7 @@ home.
 .. _this one: http://www.brother.ca/en-CA/Scanners/11/ProductDetail/ADS1500W?ProductDetail=productdetail
 .. _ImageMagick: http://imagemagick.org/
 .. _Tesseract: https://github.com/tesseract-ocr
+.. _Unpaper: https://www.flameeyes.eu/projects/unpaper
 .. _GNU Privacy Guard: https://gnupg.org/
 .. _Python 3: https://python.org/
 .. _Pillow: https://pypi.python.org/pypi/pillowfight/