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I have just started working with Ubuntu.

My work includes a lot of books that to be read. Hence while reading, I need to --comment & highlight the characters in the form of PDF & DJVU file.

I have installed Document Viewer and qpdfviewer. But both of these softwares do not have this option.

I can't find any other in Ubuntu software updater. So Please suggest me some softwares according to my needs.

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2 Answers 2

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You can use Xournal - Ubuntu Apps

Xournal is a GTK+ application for notetaking, sketching and keeping a journal using a stylus. It can also be used to add annotations to PDF files.

Xournal

To install:

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install xournal

Optional, to remove Xournal, run:

sudo apt-get remove xournal

DjVuLibre which is an implementation of DjVu, including viewers, browser plugins, decoders, simple encoders, and utilities.

DjVuLibre

Okular is a universal document viewer with support for advanced document features, such as highlights,annotations, forms, and embedded files.

Okular

To View djvu files using Okular :

apt-get install okular-extra-backends
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  • Thanks for the suggestions. Its working for PDF files. Can you suggest the same for DJVU files? Aug 19, 2015 at 7:26
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    Thank you @sridhar. Okular has a variety of options which match my requirements. Aug 20, 2015 at 9:55
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    okular saves djvu annotations internally, meaning that if I open annotated djvu with other viewers except for okular I won't see the annotations. Nov 4, 2018 at 19:47
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Yes, you can comment in Document Viewer(or evince), but I didn't find any entries for highlighting. Here is how to add a comment in Document Viewer(or annotation):

In the Document Viewer, you may have a side pane, or you can manually open it by pressing F9

In the Side Pane, there is a few options on the top, just like this:

Side pane top

Then you can select the option of Annotations, as shown in the picture. Then select the Add button.

enter image description here

Click on the Pen button to add one.

Pen

It will pop out a little white cross, click on anywhere on the document to start comment, or add an Annotation.

For the Highlighting function, you need to ask other people.

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    Thank you. Its working in a PDF file . I forgot to mention in my question, that I need the same for DJVU files as well. Annotations is not working there. Aug 19, 2015 at 7:23
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    Oh, sorry, but I am not familiar with DJVU files.
    – Chromium
    Aug 19, 2015 at 8:59

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