Last Updated on January 6, 2023
The software has 2 interfaces consisting of a reading screen and a file browser. The most important thing to learn about the reading screen is where to tap/click. This is neatly illustrated in the user guide. We’ve reproduced the relevant page below.
It’s worth reading the user manual as it’s well written and structured.
The software supports a wide range of formats including fixed layout documents such as PDF, DjVu and images. It also supports reflowable documents such as EPUB, HTML, DOCX, RFT, TXT, CHM, and others. There’s also support for ZIP files.
Other features include:
- Dictionary integration in EPUB and scanned PDF and DjVu documents.
- Wikipedia lookups.
- Define custom margins.
- Set your own fonts (TrueType and OpenType formats), change the size, formats, invert, and other formatting options.
- Sync with Calibre to manage your ebooks.
- Different ways to traverse through documents:
- Skim widget.
- Book map – provides a useful overview of a book. It can show which parts of the book you have already read, and more.
- Page browser.
- Night mode.
- News downloader (RSS/Atom).
- Define Custom DPI to change the size of the interface.
- Bottom bar offering tons of customization.
- Two methods of highlighting text – normal highlight mode, and select and highlight mode. Export highlights with a plugin or external program.
- Internationalization support
KOReader is a wonderfully responsive document reader. It’s fast, brimming with features, and highly customizable. The fact that it supports a wide variety of devices is the icing on the cake.
While it faces stiff competition in the document viewer category, it earns our strong recommendation.
It’s a welcome addition to our Excellent Utilities feature.
Complete list of articles in this series:
|AES Crypt||Encrypt files using the Advanced Encryption Standard|
|Ananicy||Shell daemon created to manage processes’ IO and CPU priorities|
|broot||Next gen tree explorer and customizable launcher|
|Cerebro||Fast application launcher|
|cheat.sh||Community driven unified cheat sheet|
|CopyQ||Advanced clipboard manager|
|croc||Securely transfer files and folders from the command-line|
|Deskreen||Live streaming your desktop to a web browser|
|duf||Disk usage utility with more polished presentation than the classic df|
|exa||A turbo-charged alternative to the venerable ls command|
|Extension Manager||Browse, install and manage GNOME Shell Extensions|
|fd||Wonderful alternative to the venerable find|
|fkill||Kill processes quick and easy|
|fontpreview||Quickly search and preview fonts|
|horcrux||File splitter with encryption and redundancy|
|Kooha||Simple screen recorder|
|KOReader||Document viewer for a wide variety of file formats|
|Imagine||A simple yet effective image optimization tool|
|LanguageTool||Style and grammar checker for 30+ languages|
|Liquid Prompt||Adaptive prompt for Bash & Zsh|
|lnav||Advanced log file viewer for the small-scale; great for troubleshooting|
|lsd||Like exa, lsd is a turbo-charged alternative to ls|
|Mark Text||Simple and elegant Markdown editor|
|McFly||Navigate through your bash shell history|
|mdless||Formatted and highlighted view of Markdown files|
|noti||Monitors a command or process and triggers a notification|
|Nushell||Flexible cross-platform shell with a modern feel|
|nvitop||GPU process management for NVIDIA graphics cards|
|OCRmyPDF||Add OCR text layer to scanned PDFs|
|Oh My Zsh||Framework to manage your Zsh configuration|
|Paperwork||Designed to simplify the management of your paperwork|
|pastel||Generate, analyze, convert and manipulate colors|
|PDF Mix Tool||Perform common editing operations on PDF files|
|peco||Simple interactive filtering tool that's remarkably useful|
|ripgrep||Recursively search directories for a regex pattern|
|Rnote||Sketch and take handwritten notes|
|scrcpy||Display and control Android devices|
|Sticky||Simulates the traditional “sticky note” style stationery on your desktop|
|tldr||Simplified and community-driven man pages|
|tmux||A terminal multiplexer that offers a massive boost to your workflow|
|Tusk||An unofficial Evernote client with bags of potential|
|Ulauncher||Sublime application launcher|
|Watson||Track the time spent on projects|
|Whoogle Search||Self-hosted and privacy-focused metasearch engine|
|Zellij||Terminal workspace with batteries included|