How to install Nomacs - an Image Viewer

To install Nomacs in Ubuntu

Nomacs is an open-source image viewer used to display various images including JPEG, PNG, GIF, RAW, etc. It also supports an option to synchronize the image that viewing between multiple program instances. Installation of Nomacs in Ubuntu is explained.

Installation of Nomacs

Before installing Nomacs, add the repository files with the following command.

root@linuxhelp:~# add-apt-repository ppa:nomacs/stable
 
 More info: https://launchpad.net/~nomacs/+archive/ubuntu/stable
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring `/tmp/tmpmn_jy97s/secring.gpg'  created
gpg: keyring `/tmp/tmpmn_jy97s/pubring.gpg'  created
gpg: requesting key 29935E8D from hkp server keyserver.ubuntu.com
gpg: /tmp/tmpmn_jy97s/trustdb.gpg: trustdb created
gpg: key 29935E8D: public key " Launchpad PPA for nomacs developers"  imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
OK


Next update the newly added repository with the " apt-get update" command.

root@linuxhelp:~# apt-get update
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [94.5 kB]
Get:2 http://ppa.launchpad.net/nomacs/stable/ubuntu xenial InRelease [17.6 kB] 
Hit:3 http://in.archive.ubuntu.com/ubuntu xenial InRelease                                 
Get:4 http://in.archive.ubuntu.com/ubuntu xenial-updates InRelease [95.7 kB]                                          
Get:5 http://ppa.launchpad.net/nomacs/stable/ubuntu xenial/main amd64 Packages [1,432 B]       
Get:6 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages [131 kB]                                  
Hit:7 http://in.archive.ubuntu.com/ubuntu xenial-backports InRelease         
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.
.
Get:19 http://security.ubuntu.com/ubuntu xenial-security/universe amd64 DEP-11 Metadata [2,329 B]
Get:20 http://in.archive.ubuntu.com/ubuntu xenial-updates/main Translation-en [140 kB]         
Get:21 http://in.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [319 kB]
Get:22 http://in.archive.ubuntu.com/ubuntu xenial-updates/universe i386 Packages [316 kB]                                          
Get:23 http://in.archive.ubuntu.com/ubuntu xenial-updates/universe Translation-en [108 kB]                                         
Get:24 http://in.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 DEP-11 Metadata [88.6 kB]                                 
Get:25 http://in.archive.ubuntu.com/ubuntu xenial-updates/universe DEP-11 64x64 Icons [89.9 kB]                                    
Fetched 2,520 kB in 8s (313 kB/s)                                                                                                  
Reading package lists... Done


Finally run the below command to install the Nomacs package.

root@linuxhelp:~# apt-get install nomacs -y
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  libopencv-core2.4v5 libopencv-imgproc2.4v5 libqt5concurrent5 libtbb2 qt5-image-formats-plugins
The following NEW packages will be installed:
  libopencv-core2.4v5 libopencv-imgproc2.4v5 libqt5concurrent5 libtbb2 nomacs qt5-image-formats-plugins
0 upgraded, 6 newly installed, 0 to remove and 357 not upgraded.
Need to get 2,987 kB of archives.
After this operation, 12.6 MB of additional disk space will be used.
Get:1 http://in.archive.ubuntu.com/ubuntu xenial/universe amd64 qt5-image-formats-plugins amd64 5.5.1-2build1 [64.0 kB]
Get:2 http://ppa.launchpad.net/nomacs/stable/ubuntu xenial/main amd64 nomacs amd64 3.4.0-1~93~ubuntu16.04.1 [1,481 kB]
Get:3 http://in.archive.ubuntu.com/ubuntu xenial/universe amd64 libtbb2 amd64 4.4~20151115-0ubuntu3 [111 kB]
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Setting up libtbb2:amd64 (4.4~20151115-0ubuntu3) ...
Setting up libopencv-core2.4v5:amd64 (2.4.9.1+dfsg-1.5ubuntu1) ...
Setting up libopencv-imgproc2.4v5:amd64 (2.4.9.1+dfsg-1.5ubuntu1) ...
Setting up libqt5concurrent5:amd64 (5.5.1+dfsg-16ubuntu7.1) ...
Setting up nomacs (3.4.0-1~93~ubuntu16.04.1) ...
Processing triggers for libc-bin (2.23-0ubuntu3) ...


Open the Unity dash and type the installed package name in the search bar. Click on the Nomacs icon when it display on the screen.

Select the preferred language and then click on OK button. Now you can able to view different format of the images.

For more details about Nomacs, just click on the About option.

To remove the Nomacs package

Run the following command to remove the Nomacs software.

root@linuxhelp:~# apt-get remove nomacs -y
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libopencv-core2.4v5 libopencv-imgproc2.4v5 libqt5concurrent5 libtbb2
Use ' sudo apt autoremove'  to remove them.
The following packages will be REMOVED:
  nomacs
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Processing triggers for libc-bin (2.23-0ubuntu3) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for gnome-menus (3.13.3-6ubuntu3) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu5) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160415-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.59ubuntu1) ...
Tag : Photo Viewer
FAQ
Q
Is it possible to put the thumbnails vertically at the left edge of the screen?
A
Yes, you can right click on the thumbnails panel and then choose e.g. ‘Show Left’. You can even undock the thumbnails if you do not like the nice overlay effect.
Q
What does nomacs mean?
A
First, when we started with the RAW support, the MacBeth color charts mostly did not have the colors expected when we loaded the images in nomacs. Second, we solely supported Windows and Ubuntu in the beginning. At this point we want to thank all the supporters who translate nomacs or build it on other OS.
Q
what are the features of nomacs?
A
Grid View for Thumbnails Image Mosaicing Tool Gif Player WebP on all platforms
Q
What is the alternative to nomacs?
A
Eye of Gnome (eog) Phototonic
Q
Is it possible to stop movies such as GIF or MNG?
A
Yes, you can hit pause in the toolbar player or by selecting View > Stop Movie. If you then save the image, the currently displayed frame will be written.