Questions tagged [okular]

Okular is a universal document viewer based on KPDF for KDE 4.

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34 views

How to change outer color?

I am in Xubuntu. I had downloaded Okular after reading it. I can change inner color. But what about outer color? picture I can rest my eye by inner color. But I am unable to change outer color. Is ...
2
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1answer
113 views

How can I change Okular's GUI so I get white text on black background or similar, instead of blending colors?

Okular has an odd choice of font and background colors in some places and this makes it difficult to read some text. This image demonstrates this. I looked at the settings and searched online but ...
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0answers
135 views

How to open pdf file in Nautilus as new Okular tab?

This works in the previous version (tested on 16.04): set Okular as default pdf viewer. Open nautilus, double click pdf file. Open another pdf file will bring new tab to Okular. But this method didn't ...
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18 views

Okular text annotations Mutated vowels

I'm using Kubuntu 21.04 Okular(Version 20.12.3) doesn't display german mutated vowels (ä,ö,ü) in text annotations. Maybe somebody could help me. Thanks in advance.
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138 views

Okular pdf print preview problem

On ubuntu 20.04, I am facing problems with printing from day one. I don't know where to start from. So I deleted cups and just focus on okular. However, the print preview is coming out bad and when I ...
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74 views

Okular can't print PDF

Okular can'r print pdf files. The document viewer prints it but all the fonts look bad (print preview works fine though). I don't know how to debug. So tired of this. What is the cups? Anyone can help?...
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95 views

Okular not able to display pdf file

Hi i am used to working with pdfs in Okular. And everything was working fine but suddenly okular is not able to open the pdf file that i regularly make changes to. For example,just this morning i used ...
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0answers
32 views

How to get to the File menu in okular

I suppose this ought to be glaringly obvious, but how do I get to the File menu when I start up okular from the shell prompt? The screen I get has nothing resembling the usual File/Edit choices at the ...
6
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3answers
875 views

Okular does not respond anymore, needs Qt_5.15

I have Ubuntu 20.04 running on my system and was using the pdf-viewer Okular until recently. However, now Okular does not start when double clicking on a pdf-file and starting from the terminal gives ...
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2answers
110 views

convert landscape image to portrait

I;m using the USPS app to generate a shipping label. The app doesn't print the label directly; instead it generates a PDF for it. The problem is that the image is in landscape mode, and I need it in ...
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76 views

How to disable "This document has forms..." info in Okular

I'm constantly changing a PDF (actually an animated LaTeX document), but every time Okular reloads the document, it shows a HUGE popup saying: This document has forms. Click on the button to interact ...
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1answer
159 views

How to configure Okular to use SVOX pico for its "read text" functionality?

Okular has a nice read text functionality that by default uses espeak as a backend. As espeak has a rather robotic voice, I would prefer to use SVOX pico.
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299 views

Okular text annotation does not appear

I decided to give okular a try for editing pdf files but I am having an issue with the 'typewriter tool'. The text I type does not appear on the pdf itself within the okular editor. If I save the file ...
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0answers
91 views

Segfault launching Okular snap

I'm using Ubuntu 18.04.5 on x64 PC. Packaged version of Okular is too ancient for my needs, so I installed the newest Okular snap. Unfortunately, it crashes on launch. Here is the log: paul@extra:~$ ...
3
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1answer
718 views

How to purge okular?

I have ubuntu 20.10, 64 bit. In Menu, there are 2 instances of Okular. I can use it but cannot remove via Terminal. igor@igor-System-Product-Name:~$ sudo apt remove okular Reading package lists... ...
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146 views

Okular Document Review annotation bar

I am using the latest Okular (version 20.04.0 Snaped). Since I use Annotations/typewriter most often — it is impossible to place the annotation bar onto the toolbar — visible & easy to access. The ...
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2answers
638 views

How to install Okular 20.12.0 on ubuntu 20.10?

I am using Okular from many time and I am running it in Ubuntu 20.10. I have tried it to update from 20.08.2 to 20.12.0 but it's showing Okular is upgraded to its latest version. How can I install the ...
2
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0answers
251 views

In Okular, How to Highlight the Selected Text?

The Highlighter Tool ignores the text selection at the moment of choosing the tool. I would like to select the text first, then apply the highlighting effect via menu or shortcut.
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1answer
85 views

How to view pdf with markup

I'm trying to view my advisor's comments on a PDF of a manuscript. He's made comments using Adobe software in the past, and I've been able to use evince or okular to view them. Now neither works, and ...
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0answers
13 views

Okular glitch on the sides of the pdf

Okay, so i have Xubuntu, then i replaced xfce desktop with KDE some months ago and it has been way better although there are some litte annoying things. however, I noticed on the Okular PDF viewer ...
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0answers
99 views

Problem with fonts in okular in kubuntu 20.04

I am having a problem with fonts substitutions in kubuntu 20.04 using okular or evince (both). The file has some embedded fonts as in ------------------------------------ ----------------- ------------...
4
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1answer
1k views

Invalid Context warnings about icon themes when starting certain apps

When I start okular from the terminal, I get a bunch of "Invalid Context" warnings about certain icon theme folders (both from Yaru, which is the theme set in Gnome Tweaks, and Adwaita). ...
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20 views

Canceling an area of a Pdf page with Ocular

I'd like to cancel a specific area of a page; how can I do this with okular? In Windows I used Acrobat and it allows me to do this by putting a white text box on the desired area.
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3answers
703 views

Okular review (annotations toolbar) not available

I have been using Okular (1.3.3) on Ubuntu (18.04) for a while now and feel pretty confident in my ability to be productive in it. However, suddenly, I am lost. I opened a PDF (as I have done 100s of ...
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0answers
81 views

How to get apps detect phonon_backend

I installed Okular 1.10 via snap and, unlike the previous versions, it can't play videos embedded into pdfs due to the backend problem: WARNING: bool Phonon::FactoryPrivate::createBackend() phonon ...
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1answer
832 views

Help with debuggin KF5 / CMake error in building Okular to avoid jagged lines of freehand tool

I'm trying to compile Okular from scratch following these instructions (towards the end of the page): git clone https://invent.kde.org/graphics/okular.git cd okular mkdir build cd build cmake -...
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3answers
2k views

Multi-tab pdf reader and a way of opening pdfs in the same tab but not from within the app?

I'm using qpdfview and okular. They support tabs. But I do not see how to do the following: a) open (double click) files and have them open in one window as tabs b) "merge" all open windows ...
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0answers
97 views

Okular freezes attempting to open more than one document

I installed Okular in Lubuntu 20.04 (x64). Opening a file in Okular works with no problems. However, if I click any other document whose format (pdf, djvu, whatever) is associated with Okular in file ...
2
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1answer
216 views

How to disable Okular from following links?

Okular fetches and opens content when (inadvertently) clicking on links. I tend to bleach my PDF files before I open them, and would like to disable Okular from blindly opening PDFs (or any other ...
1
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1answer
24 views

Associate ready annotations with a raw PDF file with Okular

Problem Accidently, the file x.pdf which was a book with a lot of annotations created by Okular is deleted. Annotations, however, are present in /home/user/.var/app/org.kde.okular/data/okular/docdata/....
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0answers
417 views

Searching multiple PDF documents with Recoll

On windows, I use Foxit reader's advanced search to look up terms in multiple PDF documents in a directory. I like how flawless and quick it is moving from one document to another and from one search ...
5
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1answer
880 views

Okular not rendering markdown files

Recently I installed Ubuntu 20.04, and then Okular. In my previous Ubuntu 18.04 I often used Okular to render markdown files. Now it is not rendering these format. Do I have to install something extra?...
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2answers
71 views

Files from separate partition not accessible by Okular and GIMP (Ubuntu 18.04)

During installation of Ubuntu 18.04 I created a separate partition /store. Files are accessible, but I cannot open files on it with okular and GIMP. No exact errors are displayed, okular just says ...
3
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2answers
1k views

Why is there two instances of "Okular" and how do I get rid of the other one?

I have noticed that when I do a program search in Ubuntu 20.04, there are two instances of the program Okular. One with an icon and one that has the generic application icon (gear). I installed Okular ...
0
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1answer
140 views

Installing okular via apt-get on bionic gives me [duplicate]

On Ubuntu 18:04 Bionic (installed as a Singularity container) I issue apt-get install okular and I get the message "E: Unable to locate package okular". Why? Is okular not in the apt repositories ...
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0answers
30 views

Okular does not want to open pdf's saved through Zotero [duplicate]

I am very new to Linux / Ubuntu and have been playing around with it for the past week. I have come across a problem I can't seem to fix. If I want to open a PDF with Okular, which has been stored / ...
1
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1answer
1k views

Print PDF from Okular without scaling down?

I have just started using Okular now that I've installed Kubuntu (18.04). Previously, when printing a PDF, I would get an option about scaling. For instance, Adobe Reader has options such as "Fit to ...
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0answers
736 views

Okular in Ubuntu 18.04 and 20.04 does not keep marked-up text

1. Issue The text markup in Okular is not persistent. The yellow marker disappears just after I have swept the cursor over the text to highlight. However, the file is marked as having been edited and ...
4
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1answer
839 views

okular stamps not visible in other pdf viewers

I run 18.04.1-Ubuntu and have installed okular using snap okular 19.04.2 63 stable kde✓ I'd like to create image signature stamps with okular like described here How to add a Signature ...
2
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0answers
532 views

okular (snap) print-preview/print-to-pdf does not work

I run 18.04.1-Ubuntu and have installed okular using snap okular 19.04.2 63 stable kde✓ I try to export to pdf such that all annotations will be integrated such that they cannot be edited ...
2
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0answers
56 views

Does Okular has a way to export or display only the highlighted text?

Currently, I am aware of the feature in Okular which lets you jump to the parts of the highlighted text from review pane. However, I find it distracting and so I am trying to figure out if there is ...
3
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0answers
579 views

Fix Okular snap error [closed]

I have installed Okular from Snapcraft, initially it didn't work, but then it did, after removing and installing with the Snap Store app. After a while it stopped working. ~$ okular ERROR: ld.so: ...
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1answer
780 views

Is installing Okular in Xfce through APT going to make it "heavier"

I know the term "heavier" is relative to the capacities of each machine, but I am asking the question within the limits of that relativity, while considering a PC on which Xfce is more stable and more ...
1
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1answer
488 views

Default PDF viewer suddenly changed in Firefox & Thunderbird under KDE

I use Ubuntu 18.04 with KDE. My default PDF viewer is Okular and it has worked as intended (when I open PDF, it laucnhes Okular). That has changed recently: If I now open PDF i.e. from Dolphin, ...
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0answers
210 views

Recover overwritten annotated pdf

I had annotated a pdf in Okular that had been generated via pdflatex and saved it. I was able to open and see the annotations. However, I guess I did a Ctrl-S on the tex file by mistake and that over-...
5
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2answers
949 views

How to flatten comments using okular

Recently Okular has become a great tool to annotate pdfs. I have added some annotations (stamps) using okular to a pdf. I would like these annotations to become flat. By flat I mean that they are no ...
1
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1answer
163 views

Installed Okular using snap, toolbar file open entry don't work

Just installed Okular using the snap package in my ubuntu 16.04 machine. It works fine if right click a pdf and choose open with->okular. If I open Okular I cannot use the file menu in the toolbar. If ...
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2answers
2k views

Creating Shortcuts in Okular

I want to add a shortcut to Okular that activates the highlighting tool. I am aware of the "configure shortcuts" tab but the commands that it contains are limited and I want to know how to add a ...
2
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2answers
1k views

Cannot open pdf files in mounted usb drive using Okular

Whenever I try opening a PDF file in a mounted usb drive using Okular, it gives me this error: Could not open file:///media/walkeknow/F8A2-34D9/example.pdf I have installed okular using sudo snap ...
9
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2answers
12k views

How to add a Signature stamp to Okular

I'd like to have my own signature as a stamp for Okular. In folder /usr/share/okular there is a config file drawingtools.xml and in folder /usr/share/okular/pic the is a stamps.svg containing some ...