Installing
3. Installing Avidemux
Then to Set up Avidemux on Manjaro
Simply play:sudo pacman -Sy avidemux-qt-git
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.4. Launching Avidemux
Finally, Launch & Enjoy Avidemux
Now, to Start from Shell simply:avidemux-qt-git
Or Make Use of the Desktop Launcher:
5. Avidemux Getting-Started Guide
Getting-Started with Avidemux for Manjaro GNU/Linux

So Now I’m truly Happy if My Guide could Help you to Quick-Start with Avidemux on Manjaro!