Questions tagged [okular]

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

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304 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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18 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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1answer
120 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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21 views

Highlights and annotations in Okular suddenly gone wonky

I used Okular to highlight and annotate certain regions in a textbook that was initially in djvu format, but got saved as a .okular archive. It was previously fine, but now the highlights are all in ...
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38 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 ...
8
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1answer
153 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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19 views

Okular, Spanish audio engine

How can I make Okular read text in Spanish, it works but in English. I have been searching about it in Google, without success, I need to make Okular read in Spanish but I only manage to do it in ...
5
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3answers
585 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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30 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 ...
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1answer
55 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 ...
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1answer
17 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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86 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 ...
3
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1answer
194 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
42 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
453 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
58 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 / ...
0
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1answer
230 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
131 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 ...
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1answer
291 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 ...
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0answers
253 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 ...
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0answers
22 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 ...
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0answers
405 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
450 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 ...
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1answer
252 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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63 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-...
2
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1answer
333 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 ...
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1answer
113 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
830 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
990 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 ...
7
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2answers
4k 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 ...
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1answer
64 views

Enable infinite horizontal panning in Okular

Question Is there a way to enable infinite horizontal panning (or dragScroll) on Okular in Kubuntu? Explanation Okular has the option to drag scroll (left-click and drag) indefinitely in the ...
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0answers
115 views

Missing labeling of menu bar sections in german version of okular

I notice that in the german localisation of Okular, some headings in the menu bar are missing, instead they are saying "Kein Text" ("no text"), for example the File section at the left (it should say ...
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0answers
133 views

Additional question mark icon in Launcher when launching an app, and then the original disappears

I when I try to open Okular which I've installed using flatpak, I see these two icons in my launcher: After a while the Okular icon disappears and only the question mark one remains. What could be ...
3
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0answers
141 views

Okular not opening links in web browser [duplicate]

When I go to click on hyperlinks in a PDF document from ocular, it opens the resulting page in the text editor, not in Firefox as expected. Some output to show that Firefox should be default... $ ...
1
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1answer
400 views

Icon theme “Adwaita” not found - Ubuntu 14.04

I have installed Okular using snap in my Ubuntu 14.04. It is functional but there seems to be a problem with some of the icons. They are not being displayed. I have run okular from terminal by: snap ...
1
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1answer
566 views

How to install latest version of Okular on Ubuntu 14.04 (avoiding source install)?

Is there a way to install Okular in its latest version on Ubuntu 14.04? So far the default Ubuntu repository supports a really old version of Okular (offered by KDE Applications version 4.13.3), as ...
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2answers
730 views

PDF containing non-embedded Symbol TrueType font doesn't show math symbols

I have a PDF (generated from PowerPoint) that contains math characters which are not shown when viewing it with the default PDF viewer or Okular (greek letters, square root symbol, ... all appear as ...
7
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1answer
3k views

Suddenly Okular will not open any more

I have made my laptop double boot a few months again, with Ubuntu 18.04.1 . I have been working with okular to open pdf files (for the commenting option) but suddenly okular doesn't work anymore. When ...
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0answers
55 views

Compiling modified version of Okular with new highlighting tool

Regarding the post Modify Okular highlight to automatically copy highlighted text into comment, I need help for the process to follow in order to compile Okular hicksor version on Ubuntu 18.04. I have ...
3
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0answers
394 views

Going through annotations in Okular

I use Okular to read and annotate PDF textbooks. I use mostly highlighting alone but I sometimes add a pop-up note attached to highlighted text. When I want to read some material again, I like to just ...
6
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2answers
4k views

The “Speak Text” feature in Okular is not working. How do I get it to work?

I'm currently using Ubuntu 18.04 and Okular for viewing pdf documents. I thought it would be convenient if I could use the text to speech feature. I tried following all the instructions given here: ...
0
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1answer
215 views

Evince - Libreoffice - Geogebra - Apparmor issues

I try to authorize evince to open Geogebra and libreoffice files as links. Using evince 3.18.2 on ubuntu 16.04. Update 1: I've just installed a fresh 18.04 with the same problem. Update 2: Here are ...
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0answers
167 views

Evince hide all comments

I am trying to view a PDF created by AutoCAD LT; for some reason it shows with a "comment box" around all of the text elements. I have a PDF with hundreds of little boxes that cannot be moved or ...
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0answers
33 views

Okular version 1 Auto Save Annotations

I recently moved my OS from Ubuntu 14 to 18. Unfortunately, unlike in my previous setup it seems current Okular version 1.3.3 does not allow auto save of annotations. Is there a way to set auto-save ...
5
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2answers
1k views

Ubuntu 18.04 Okular printing regression? Multiple pages per sheet with page border

In Ubuntu 16.04, Okular had this nice "Pages" tab in the printing dialog: In Ubuntu 18.04, this tab is not there anymore. There is a similar option for printing multiple pages per sheet in the ...
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1answer
2k views

Okular - open links in a new tab or new windows

I want Okular opens pdf links in a new tab or better in a new window. I have enabled open new files in a new tab, but it doesn't work : Okular opens the new file instead of the previous file : one ...
0
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1answer
45 views

transfer okular annotations to extended pdf

I have an OLD.pdf annotated using okular. I also have a NEW.pdf, which is the OLD.pdf without anotations plus an extra chapter in the end. How can I transfer the annotations from the OLD.pdf to the ...
2
votes
2answers
775 views

Okular no longer working in terminal after Kubuntu 18 upgrading

I have recently upgraded from Kubuntu 16 to 18. When I try to run okular in a terminal (konsole) as a user (as I have been successfully doing before, in vs 16), in vs 18 it fails, giving a message ...
7
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1answer
605 views

How to use qt-speech in Kubuntu 18.04 (cli / Okular)

In Kubuntu 18.04 Okular can read any selection text, or the whole document by default. That is great, it is using qtspeech5 but How do I set the language? How can I use it from the CLI? Can't ...