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Questions tagged [okular]

Use this tag for questions about Okular, KDE's document viewer.

Okular is an open-source document viewer that is part of the K Desktop Environment (or ). It supports opening common formats like PDFs, PostScript files, and ePubs.

Related Software

  • - another open-source document viewer which is designed for the GNOME
  • Sumatra PDF - an open-source document viewer for Windows

Sources

39 questions
22
votes
9 answers

How to sign a pdf in Okular or other FOSS program?

How do I sign a PDF in Okular? I tried searching for about 20 mins, but I can't find any answers... I have a .png of my signature, and I basically want to insert it into the document on the dotted line. An electronic timestamp etc would also be…
modulitos
  • 534
20
votes
1 answer

Where does Okular store the PDF annotations?

I am using Okular in Ubuntu 11.04 as it has support to annotations and is faster to do a quick find across large documents. The annotations are not stored in the document, but are stored as metadata in some folder. I would like to know where Okular…
Praveen Sripati
  • 1,895
19
votes
1 answer

Okular - Darkmode without invert images colors

I'm studying a lot on screen because of the Covid19 pandemic. And it tears my eyes apart. brieucdug@msi:~$ lsb_release -d && uname -r Description: Ubuntu 20.04 LTS 5.4.0-37-generic (gnome-shell) Resume I've set the dark mode on, but it inverts…
B. du Garay
  • 291
12
votes
2 answers

Customise Okular to modify highlight tool properties

I am using Okular as my pdf reader on Linux. I want to know how I can modify the color of the highlight permanently. I know I can modify the saturation of the color used by highlight tool by right clicking on the highlight selection and making the…
Suvarna Pattayil
  • 1,102
9
votes
2 answers

Modify Okular highlight to automatically copy highlighted text into comment

Despite what old SE questions state, the PDF software Okular can now write annotations directly to the PDF. This makes it very useful in conjunction with Docear for annotating academic literature. However, Docear imports annotations from the…
JDD
  • 93
8
votes
7 answers

Customise Okular to add my own annotation "stamps"

There's an excellent post on customising Okular to modify highlight tool properties at Customise Okular to modify highlight tool properties It's helpful but it deals with modifying an existing tool feature. I want to add my own annotation "Stamps"…
Mick Thomason
  • 81
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7
votes
0 answers

Okular print multiple pages per sheet has been greyed-out/deactivated

As the question goes, the page setup options remain greyed out whenever I want to print multiple pages a side and save it as a pdf document in a file (the print to file option). I do not have a working printer so I cannot say whether the problem…
evil_potato
  • 171
  • 3
6
votes
2 answers

How to customize appearance of digital signature in Okular?

I am using KDE Neon, and I have successfully configured Okular to add a digital signature to my PDF (using Tools > Digitally Sign menu item). However, it looks ugly like this (the rectangle with black border and light grey fill): (I added some…
pepoluan
  • 1,332
6
votes
3 answers

Change border color of Okular annotations

Inline Note annotations in Okular (the default PDF reader for the KDE desktop) only allow me to modify the highlight color by default, but I want to modify the border color of those annotations too. How can I modify the border color of Okular…
gvd
  • 193
5
votes
1 answer

How to recover annotations made by okular to a PDF file after being moved from another user's homedir?

I made lots of annotations to some PDF files using okular (KDE's PDF viewer). Then, I decided to move them to another user's homedir, but found out the annotations weren't available anymore. With a little research I found Where does Okular store the…
Claudio
  • 596
5
votes
1 answer

Okular: Highlight with comment

I need to annotate a PDF document with Okular in the following way: highlight text, then add a comment for the highlight. I'm used to PDF XChange Editor where I can use the Highlight-Tool, then double-click the highlight and type a comment for that…
RL-S
  • 205
5
votes
3 answers

Avoid opening the same file in multiple Okular instances

When invoked on a file that is already opened, okular will simply start another instance. This leads to cluttering for example when compiling LaTeX documents and repeatedly starting the viewer, or simply when one has forgotten a file is opened and…
ysalmon
  • 253
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  • 8
4
votes
1 answer

Form filling in presentation mode in okular

I have a beamer presentation with some animation. When I load the pdf, okular shows a "Show forms" option, on enabling that I am able to play those animations. However when I enter the presentation mode I am no longer able to play the animation.…
cookiemonster
  • 141
3
votes
2 answers

How to sync okular annotations between Windows and Linux using Dropbox?

Is there some way I can make Okular store metadata (specifically annotations) in Dropbox, so it is read by Okular regardless of which computer I am using. For example, I have a Linux laptop with lots of Okular annotated PDFs, but when I read them…
Sav-econ
  • 181
3
votes
0 answers

Okular Windows 10 not showing videos in PDF

I'm creating a presentation using beamer. I've embedded a video in the pdf using media9 package. I'm using Okular PDF viewer. In ubuntu, everything works fine i.e. I can see the video playing as soon as I open the page. But in windows, the area that…
Nagabhushan S N
  • 295
1
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