Archives For Howtos

gThumb image viewer and organizer announced version 3.12.0 as the new stable release series!

gThumb 3.12.0 is the new stable series since the last 3.10.x, while the 3.11.x is the development release.

What’s New in gThumb 3.12.0:

The new release includes many new features compare to the previous stable 3.10.x. They are all introduced in the 3.11 development releases, so you may already enjoy using them for a period of time.

With libheif library, gThumb now opens AVIF, HEIF (include Apple’s HEIC) images, and allows to save images as AVIF. And it supports JPEG XL images using the jpeg-xl library. A template editor is available to edit text values with special codes, for use in script commands, rename templates, print header and footer, etc.

Besides that, it improved file navigation for directory contains thousands of images. The file list now starts more thumbnailers in parallel, status bar has button to show the progress dialog. And the color picker tool shows colors in two more formats: rgb in % and hsl. Others include:

  • Allow to set shortcuts to activate filters.
  • Allow to mount unmounted volumes.
  • Add file actions to the viewer context menu.
  • Read color profiles from png files as well.
  • Option to show/hide the status bar.

For those already running gThumb 3.11.4, there are only bug-fixes and translation updates.

How to Install gThumb 3.12.0 in Ubuntu:

The software does not provide official binary package. Besides building from the source tarball, you may install it via the unofficial Ubuntu PPA.

1. Add the Ubuntu PPA.

The PPA so far provides packages for Ubuntu 20.04, Ubuntu 21.04, Ubuntu 21.10, and Linux Mint 20. It contains package for Ubuntu 18.04 but lacks JPEG XL support.

Firstly open terminal either from start menu or by pressing Ctrl+Alt+T on keyboard. When it opens, paste the command below into terminal and hit run:

sudo add-apt-repository ppa:ubuntuhandbook1/apps

2. Update system package cache.

Adding PPA will automatically refresh the package cache in Ubuntu 20.04 and higher. However old versions and some Ubuntu based systems does not. To do it manually, simply run command in terminal:

sudo apt update

3. Install / Upgrade gThumb.

Finally, either run the apt install command in a terminal window to install the image viewer:

sudo apt install gthumb

Or use the Software Updater (Update Manager) utility to receive package updates. Un-check other packages from the PPA if you don’t want them.

Uninstall / Restore gThumb:

You can restore to the stock version of the image viewer and organizer by purging the PPA repository. To do so, simply run command:

sudo apt install ppa-purge && sudo ppa-purge ppa:ubuntuhandbook1/apps

You may also keep the gThumb package but remove the Ubuntu PPA, since it contains many other software packages that you don’t prefer. To do so, either run command in terminal:

sudo add-apt-repository --remove ppa:ubuntuhandbook1/apps

Or remove the repository line under ‘Other Software’ tab via Software & Updates utility.

GIMP announced the 2.10.28 release of the popular image editor. The release includes mainly bug-fixes and stability improvements.

The source tarball of version 2.10.26 is available to download 2 weeks ago. Due to a build bug, the project team skipped it and announced GIMP 2.10.28 as the latest stable release with fixes.

Changes in GIMP 2.10.28:

For Windows users, the new GIMP released fixed some long standing issues, including:

  • Fixed very slow file dialogs that happen on slow or unavailable network devices, removable devices connection, or even fake floppy drives.
  • Fixed crash when opening files in specific third-party software.
  • GTK outputting the wrong character on some keyboard input using Input Engines.
  • TIFF exporting locks the TIFF files due to bug of Windows thumbnailer.
  • GIMP prevent some apps to open, when they need to watch some specific directory.
  • Apps with invisible windows, e.g., e.g. gesture shortcuts, screen capture, used to interfere and break some mouse interactions.

For macOS Big Sur, GIMP applied performance improvements to the packages since version 2.10.22 as experiments. Now the code has been moved to the main codebase.

The release also features GEGL 0.4.32, which introduced new edge_handling parameter allows to choose whether areas outside the input to be treated as above or below threshold for calculating distance. And the test system gets some nice improvements.

Other changes in GIMP 2.10.28 include:

  • The Dashboard dockable now has memory support in OpenBSD.
  • Fixes to plugins, including C-source, DICOM, GIF, PS, Sunras, BMP, DDS, PSD, TIFF, Gimpressionist, metadata viewer and several script-fu scripts.
  • A new Script-Fu function (dir-make) enables to create directories from scripts.
  • Fixed some accessibility issues in themes.

How to Install GIMP 2.10.28 in Ubuntu:

1. GIMP Flatpak:

The project team recommends the flatpak package, the universal Linux package format runs in sandbox. The package is available at flathub.org. Users need to follow the setup guide and install the flatpak via the command in the bottom of the link page.

2. GIMP Snap:

The image editor is also available as Snap, another universal package format developed by Canonical, the company behind Ubuntu.

The snap version is so far GIMP 2.10.24. It however will automatically update to the latest (once published) after installed it. And the snap is available in Ubuntu Software:

3. Ubuntu PPA

For those stick to the classic .deb package, GIMP 2.10.28 is available to install via this unofficial PPA in Ubuntu 20.04, Ubuntu 21.04, and Ubuntu 21.10.

1.) Firstly, either search for and open terminal from the Activities overview screen, or press Ctrl+Alt+T on keyboard. When terminal opens, run command to add the PPA:

sudo add-apt-repository ppa:ubuntuhandbook1/gimp

Type user password (no visual feedback) when it asks and hit Enter to continue.

2.) Next, install GIMP 2.10.28 either by running apt command in terminal:

sudo apt install gimp gegl

or upgrade the editor using Software Updater (Update Manager):

Remove PPA and restore GIMP:

For any issue, you can purge the Ubuntu PPA which will downgrade the installed packages to the stock versions. To do so, firstly install the ppa-purge utility:

sudo apt install ppa-purge

Next run command to purge the Ubuntu PPA:

sudo ppa-purge ppa:ubuntuhandbook1/gimp

For those prefer the classic .deb package, the Krita Lime PPA is finally updated with the latest v4.4.8 package for Ubuntu 20.04, Linux Mint 20 and Ubuntu 21.04.

Krita Lime PPA:

Krita provides official Linux binaries in a few package formats, e.g., Flatpak and Appimage. The Krita Lime PPA (Personal Package Archive) is one of them maintained by Alexey Samoilov, which provides the classic deb packages of the graphics editor for all current Ubuntu releases (so far Ubuntu 18.04, Ubuntu 20.04, Ubuntu 21.04) and their based systems, e.g, Linux Mint 20, Elementary OS 6 and Zorin OS 16.

For unknown reason the PPA package stopped at v4.4.3 for almost half an year, missing a few release updates. And finally it’s updated today with the recent Krita 4.4.8 package for Ubuntu 20.04 and Ubuntu 21.04, while the Ubuntu 18.04 package is still being working.

Install the Latest Krita from the PPA

For those sticking to the apt package, you can add the PPA and upgrade the digital painting software via following steps.

1.) Add Krita Lime PPA.

Firstly, click the top-left ‘Activities’ button to bring up overview screen, then search for and open terminal. Or search for and open terminal from your system start menu.

When terminal opens, paste the command below into it and hit Enter:

sudo add-apt-repository ppa:kritalime/ppa

For running sudo command you have to type user password to authenticate, and then hit Enter to continue.

2.) Install or Upgrade Krita.

After adding the PPA repository, you can now open system update manager (Software Updater) app and upgrade this popular digital painting and 2D animation software if an old version was installed.

Or just run this command in a terminal window to install or upgrade it:

sudo apt install krita

Once installed, launch it from your system start menu and enjoy!

Uninstall Krita and Remove the PPA:

It’s always easy to remove the packages from your system. Also open a terminal window and run the command below will do the job:

sudo apt remove --autoremove krita krita-data

To remove the PPA, simply add --remove flag in the command used to add it. So the command will be:

sudo add-apt-repository --remove ppa:kritalime/ppa

Or open the Software & Updates utility and remove relevant line from ‘Other Software’ tab.

KeePass Password Safe 2.49 released with user interface improvements and minor new features. Here’s how to install it in Ubuntu via PPA.

According to the release note, the new release added new dedicated context menus for custom string fields and auto-type associations in the entry dialog. Allows to copy names, values, target windows and sequences, copy and paste items, and do select all and move to actions. The button “More” is present to the right of the custom string fields and auto-type associations list to show the context menu.

The release also added optional “Auto-Type – Enabled” and “Auto-Type – Sequences” main entry list column. They are disabled by default and can be turned on via menu “View -> Configure Columns”.

KeePass 2.49 added support for importing Keeper 16.0.0 JSON files, and automatic screen reader detection based on the operating system’s screen reader parameter. Other changes include:

  • New ‘Show confirmation dialog when opening a database file whose minor format version is unknown’ option.
  • Dialog banners can now be read by screen readers
  • Added accessibility names for some controls
  • Controls in the accessibility/automation control tree are now ordered by their visual locations
  • Various accessibility enhancements and other improvements.

How to Install KeePass 2.49 in Ubuntu:

KeePass 2.x runs on Linux through Mono, the open-source .NET Framework-compatible software framework. The UI looks old. If you don’t like it, try KeePassX the native Linux password manager.

The software does not provide Linux binary package so far. Besides building from the source, you can use the unofficial Ubuntu PPA.

NOTE: I offer no warranty for any package in the PPA. Build rules and patches borrowed from the Julian Taylor’s PPA. Use it at your own risk.

1.) Firstly, open terminal from start menu and run command to add the PPA:

sudo add-apt-repository ppa:ubuntuhandbook1/keepass2

Type user password when it asks since sudo command need user authentication and hit Enter to continue

2.) Then run command to update package cache, though it’s done automatically in Ubuntu 20.04 & higher while adding PPA:

sudo apt update

3.) Finally install this mono based password manager package by running command:

sudo apt install keepass2

By keeping the Ubuntu PPA, next time a new release is published you’ll be able to upgrade it using system’s Software Updater (Update Manager) utility.

Uninstall KeePass2:

To remove the software package, run command in terminal:

sudo apt remove --autoremove keepass2

And remove the Ubuntu PPA either via command in temrinal:

sudo add-apt-repository --remove ppa:ubuntuhandbook1/keepass2

or by launching “Software & Updates” utility and removing the relevant line under “Other Software” tab.

For those don’t like the Flatpak package, here’s how to install GIMP 2.99.6 from PPA in Ubuntu 20.04 LTS.

The popular GIMP image editor is working on the next major 3.0 release. For testing purpose, GIMP 2.99.6 was released as the latest development version. It provides the official Linux package via Flatpak package. However, some users don’t like it, since Flatpak is an universal package format needs separate daemon to run in sandbox.

Install GIMP 3.0 Dev from PPA in Ubuntu 20.04:

For Ubuntu 20.04 and derivatives, e.g, Linux Mint 20 and Zorin OS 16, the unofficial PPA contains the classic .deb package for GIMP 3.0 Dev release.

NOTE: The package in the PPA is unstable. It may have bugs and used only for testing purpose. Installing GIMP from this PPA will override the 2.10 stable release, don’t install it on production machine.

1. Add the PPA.

Press Ctrl+Alt+T on keyboard to open terminal, or search for and open terminal from start menu if you’re on Linux Mint or ZorinOS.

When terminal opens, copy and paste the command below and hit Run to add the PPA:

sudo add-apt-repository ppa:mati75/gimp30

Type your password as sudo command need user authentication, and hit Enter to continue.

2. Update package cache

Since Ubuntu 20.04, it updates the system package cache automatically while adding Ubuntu PPAs, However, Linux Mint 20 does not. So you may need to manually run command in terminal to update cache:

sudo apt update

3. Install / Upgrade to GIMP 3.0 Dev

Finally, you can either open Software Updater (Update Manager) to install or upgrade the GIMP package, or run command in terminal instead:

sudo apt install gimp gegl

Revert to GIMP 2.10 Stable:

It’s possible to downgrade the image editor back to 2.10 stable release, 2.10.18 if no other relevant PPA added.

Simply open terminal and run the command below to install the ppa-purge package, and then purge the Ubuntu PPA which will remove it as well as downgrade installed packages:

sudo apt install ppa-purge && sudo ppa-purge ppa:mati75/gimp30

That’s all. Enjoy!