I needed to highlight some text in my screenshots and I did not know how to do it with the default screenshot app. Flameshot is a solution. I installed it.

How can I replace the PrtScr shortcut-key so that it launches Flameshot?

  • 1
    You should cut out everything from the second sentence onward, post it as an answer and delete it from the question so that the Q&A format is mantained. – dsSTORM May 15 '18 at 11:47
  • Since Ask Ubuntu is a question and answer site, you should post the answer separately as @dsSTORM said. I have removed the answer part from the question, but you can find it here. Please post the answer in "Your Answer" section below. It's completely fine to answer your own question. – pomsky May 15 '18 at 13:01

If you need or want to replace the PrtScr shortcut do the following:

  1. Release the PrtScr binding by this command

    gsettings set org.gnome.settings-daemon.plugins.media-keys screenshot '[]'
  2. Go to Settings -> Devices -> Keyboard and scroll to the end. Press + and you will create custom shortcut.
    custom shortcuts in ubuntu 18.04

  3. Enter name: "flameshot", command: /usr/bin/flameshot gui.

  4. Set shortcut to PrtScr (print).

That is it. Next time you push PrtScr flameshot will be launched.

Source: Posted in the question by OP which should have been posted as an answer instead.

  • 2
    You need [] inside the '' so it should be '[]'. Otherwise this should be accepted as the correct answer. – Khongor Bayarsaikhan Mar 17 '20 at 22:20
  • 4
    Works in Ubuntu 20.04 – 43Tesseracts Mar 8 at 21:22
  • If it's installed as a snap just set the command to flameshot gui (without the path) – niclaslindgren Apr 20 at 6:38
  • 1
    Strange that Flameshot has configuration options for a myriad of keyboard shortcuts except for the most important one. – Jonathan Neufeld Apr 26 at 18:16

Install and setup flameshot via terminal ... if there is no custom0 shortcut / binding configured

Install flameshot:

sudo apt install flameshot

Release the PrtScr binding by this command:

Ubuntu 19.10 (Credits: @jobou's comment)

gsettings set org.gnome.settings-daemon.plugins.media-keys screenshot '[]'

Older Ubuntu versions:

gsettings set org.gnome.settings-daemon.plugins.media-keys screenshot ''

Set new custom binding:

gsettings set org.gnome.settings-daemon.plugins.media-keys custom-keybindings "['/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/']"

Set name:

gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/ name 'flameshot'

Set command:

gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/ command '/usr/bin/flameshot gui'

Set binding:

gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/ binding 'Print'
  • 4
    On Ubuntu 19.10, I had to release the PtrScr binding with this command gsettings set org.gnome.settings-daemon.plugins.media-keys screenshot '[]' – jobou Nov 1 '19 at 18:17
  • This worked on Fedora 31! – Rocky Kev Apr 21 '20 at 16:51
  • Worked on Ubuntu 20.04 – 43Tesseracts Mar 8 at 21:20
  • works on Elementary OS, Hera 5.1 – Slabo Mar 12 at 0:40
  • works perfectly – Vladimir Kovalchuk Jun 4 at 11:01

In case you installed Flameshot via snapcraft.io and not via standard sudo apt install flameshot, then the path /usr/bin/flameshot gui will not work, because the path is different.

  1. So, first run command type flameshot (for Ubuntu 18.04 and higher). This will show you the path where app is installed.

  2. Copy this path.

  3. Press Super and search for keyboard shortcut.

  4. Find word screenshot

    see this example

  5. Edit it (in my case, I assigned Shift+Ctrl+Alt+~ as I have never used this key combo)

  6. Then go back, click + symbol and add the path you have copied to command.

    and see this example


This is tested on Ubuntu 20.04

  1. Disable PrintScr or Print shortcut by opening the Keyboard Shortcuts Settings

  2. Navigate to Keyboard Shortcuts on bottom left menu, then select Print shortcut which is to Save a screenshot to Pictures

enter image description here

  1. Hit Backspace to disable the current keyboard shortcut so that we can use this for Flameshot later.

  2. Hit Set to apply/confirm it.

enter image description here

  1. Identify Flame binary location with which command
$ which flameshot
  1. Then, scroll down to the bottom and select + symbol to add new shortcut.

enter image description here

  1. Add Custom Shortcut

Name: Flameshot Command: /usr/bin/flameshot gui Shortcut: Print

enter image description here

That's it


Or simply set any shortcut (including PrtScr) to flameshot gui: as indicated in the other answers, only without the need for any other setting. You will be asked if you want to remap the key (in Xfce at least, but I guess it's the same in most desktops).

You might consider keeping PrtScr for the default screenshot tool and use other shortcuts for flameshot, at least two I mean, because you can also capture screen with delay: for a 5-second delay, use flameshot gui -d 5000.

More here.


Do the following:

  1. Open the system settings app select Devices, then go to Keyboard.
  2. Scroll down to Screenshots. Select “Save a screenshot to Pictures” and hit delete to disable the shortcut.
  3. Then scroll all the way to the bottom and hit the plus button. Here, give it a name and type the Flameshot command you want to bind to the shortcut.
  4. Then set the shortcut as Print Screen and for command type flameshot gui.

You’re done.


Working in Kubunto 20.10 :

Go to "System Settings" SystemSettings

"Shortcuts" > "Global shortcuts" Settings_shotcut > click "Add Aplication" button ( you can type "flameshot" on the search box ) addAplication> "OK"

After add the application, you should see a tab with "Take screenshot" description. link PrtScr key to shortcut

click on it , and push on your keyboard "PrtScr" to set the shortcut.

Enjoy :)


Ubuntu 20.04:

  1. Remove the keyboard shortcut assigned for "PrtScr". Settings > Keyboard Shortcuts > Click "Save a screenshot to Pictures" > Press "Backspace" to unassign.

  2. Assign Flameshot to "PrtScr". Press the "+" icon > Name: Flameshot > Command: flameshot gui > Set Shortcut > Press "PrtScr" > Click Add to save.

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