News, Tutorials, Howtos for Ubuntu Linux
Looking for an app to sign, annotate, or edit PDF files in Ubuntu Linux? Here I’m going to introduce some for you!
PDF, stands for Portable Document Format, is a file format that’s popular for office use. Besides using Adobe Acrobat, Linux has quite a few applications that can edit this file format.
This tutorial shows how to hide (or auto-hide) the top bar in Ubuntu 24.04, Ubuntu 22.04, and/or Ubuntu 20.04 with default GNOME Desktop.
Like the left (or bottom, if you moved it to) dock panel, the top bar can be hidden in Ubuntu and other Linux with GNOME Desktop to save screen space. And, this can be done by using one of the following extensions:
Celluloid, free open-source GTK4 GUI front-end for MPV, released new 0.27 version hours ago.
Celluloid, formerly GNOME MPV, is a media player interacts with mpv via the client API, allowing access to mpv’s powerful playback capabilities, while providing a modern user interface that looks native in Ubuntu, Fedora Workstation, and other Linux with GNOME Desktop.
The new 0.27 release introduced floating header-bar in the windowed mode. It can be enabled, along with floating controls, either in “Preference” dialog or by running gsettings command. They only appear when moving mouse cursor over the video, so user can watch video without distraction.
Floating header-bar & controls only appear on mouse hover
OnlyOffice, the popular free open-source office suite, announced new 8.1 release for its desktop editors.
The Desktop Editors is the offline use version of OnlyOffice office suite. It’s made up of Document, Spreadsheet, Presentation, and PDF Form apps, and, supports collaborative editing by connecting to a cloud service.
The new 8.1 release finally added full-featured PDF editing support for the both online and offline apps. After opened a PDF file, go to Home -> Edit PDF to toggle between viewing and editing mode.
When in editing PDF mode, you’ll see the tool-bar options to edit text, add, rotate and delete pages, insert various objects, such as text boxes, shapes, images, hyperlinks, tables, and more.
Darktable, the free open-source raw image processing software, released new 4.8.0 version this Friday!
Darktable 4.8.0 introduced a few new modules. They include the color equalizer module, allowing to control hue, lightness, and/or saturation based on colors.
There are as well new Enlarge Canvas module, allowing to add areas on top, bottom, left, and/or right of the image, and fill with different colors, or some other part of the image by using Retouch module.
By drag-and-dropping from the filmstrip to the new Overlay module, it can now add overlay on top of current image. And, the overlay can be scaled, rotated and shifted horizontally or vertically.
Darktable 4.8.0 Enlarge Canvas and Color Equalizer
KeePassXC, the popular free open-source KeePass and KeePassX based password manager, released version 2.7.9 few days ago.
The new KeePassXC 2.7.9 installed as Snap finally uses new desktop portal for native messaging integration. Meaning without using an external script, it now has out-of-the-box browser integration support. However, KeePassXC seems no longer provides official support for Snap package.
So far, Firefox (native + Snap), Chromium Snap, Google Chrome native, Brave native are tested and work with KeePassXC installed as Snap. Though, user may need to grant permission by running the command below in terminal:
sudo snap connect keepassxc:browser-native-messaging
Since version 2.7.7, the password manager added basic Passkeys/WebAuthn support, and added a context menu option to import passkeys. In the new release, it improved the feature by adding a new “Remove Passkey from Entry” context menu option.
This tutorial shows how to enable .jxl file support for system image viewer, GIMP, and some other apps in Ubuntu 24.04, Ubuntu 22.04, Ubuntu 20.04, and even Ubuntu 18.04.
JPEG-XL is a new image format by JPEG committee. It supports both lossy and lossless compression, and includes features such as animation, alpha channels, layers, thumbnails, and has better compression efficiency (60% improvement) comparing to JPEG.
For encoding and decoding JPEG-XL images, there’s a free open-source libjxl library available. Ubuntu has included the library in system repository since 24.04, however lacks GdkPixbuf loader plugin until Ubuntu 24.10 (still in development so far).
Meaning system default image viewer, and many other apps do not work with .jxl file in current 3 Ubuntu LTS releases out-of-the-box.
For those who are sticking to KeePass2 password manager, here’s an Ubuntu PPA contains most recent .deb package for Ubuntu 24.04, Ubuntu 23.10, Ubuntu 22.04, Ubuntu 20.04, and Ubuntu 18.04.
Linux has a native KeepassXC password manager, though KeePass2 is still available for choice, which runs in Linux through Microsoft’s mono software framework.
Ubuntu includes KeePass2 package in system repository, but always old!
For the most recent versions, 3rd PPAs so far are the only choices besides building from the source tarball.
HPLIP, the free open-source HP developed Linux driver for HP inkjet and laser based printers, released version 3.24.4 today!
The development of HPLIP seems lagging behind. Rather than supporting for current Ubuntu 24.04, the new release adds installer support for Ubuntu 23.10, which will reach end of life next month.
It also added support for Debian 12 and Fedora 39, both of which were released in last year.
Besides new Linux Distributions support, HPLIP 3.24.4 also added new printers support! They include:
By releasing version 2.0 preview, DevToys is finally a cross-platform app that also works on Linux and macOS!
DevToys is a free and open-source tools for developers. It features a set of offline tools all in one app window. They include:
