How to annotate documents using Okular

Okular is not only a great viewer for documents, but it can also be used to annotate and take notes on these documents. This is typically used with PDF documents.

  • If you want to work with DjVu and other formats, remember to install those backends:
$ sudo apt install okular-extra-backends
  • To annotate, open the document and choose Tools -> Review. The keyboard shortcut for this is F6.

  • A sidebar appears with buttons to add popup notes, freehand, highlight and other operations.

  • Single-click on any of these buttons, to be able to perform that operation once. To perform it again, you will need to click the button again.

  • Double-click on any of these buttons, to be able to perform that operation multiple times. Press Esc to disable the operation after you are done.

  • To edit the color, thickness or any other property of these annotation tools, right-click anywhere in the sidebar and choose Configure Annotations.

  • To remove any annotation (even from a PDF file), right-click on it and choose Delete.

  • To move annotations such as popup notes, hold Ctrl key while you click and drag them with the mouse.

  • By default, the annotations are saved locally in a hidden file in the home directory.

  • To save the annotations along with the file, save it as a Okular document archive. To do this, choose File -> Export as -> Document Archive. This is typically saved with the file extension .okular.

Reference: Annotations documentation page about Okular

Tried with: Okular 4.13.3 and Ubuntu 14.04

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