I am currently using Ubuntu 15.10. I need to highlight some sentences and/or paragraphs for easy searching but I can't find any option for this in the "Document Viewer" which is the default application for pdf files.


5 Answers 5


Document Viewer DOES actually support annotations and highlightings in PDF files (not in other formats). Just click on that notebook like button and you'll be able to annotate and highlight text.

enter image description here

  • 1
    You will be able to highlight but not delete the highlights :(
    – GStav
    Nov 24, 2017 at 13:55
  • 13
    @GStav You can right click on the highlighted text and select Remove annotation. You can also right click and select Annotation properties and change colour etc.
    – consuela
    Jan 29, 2018 at 13:43
  • 1
    – geogeek
    Dec 12, 2018 at 9:51
  • 5
    Does anyone knows the keyboard shortcut for this? Dec 13, 2018 at 1:09
  • 2
    @NVSAbhilash I read somewhere that the key bindings are s for sticky notes and Ctrl+h (or at least will be in a future release).
    – balu
    May 13, 2019 at 8:21

Try Mendeley (https://www.mendeley.com/)! It does the work like a charm!

In fact, Mendeley is more than a PDF-reader. You can use it to organize your docs and references.


Document Viewer doesn't support highlighting install another application such as FoxIt Reader. I prefer foxit because it's simple to use and if you install on Windows, Mac or mobile keep the highlighting and attachments.

To install foxit reader :

  1. Open Foxit website.
  2. Click "Free download" and it will detect operating system then click "Download". enter image description here
  3. Extract the file you downloaded.
  4. Double click the .run file and install.enter image description here

You Can also use the WPS it's great tool for pdf reader and supports highlighting function in pdf files. https://www.wps.com/linux


In the default document viewer that comes with Ubuntu, you can use ctrl+H to highlight the text.

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