0c76c73e4f
* I'd failed to notice that ButtonTable *also* instantiates seven billion Buttons on each update. Unfortunately, that one is way trickier to fix properly, so, work around its behavior in Button. (This fixes multiple issues with stuff using ButtonTable, which is basically anything with a persistent set of buttons. A good and easy test-case is the dictionary popup, e.g., the Highlight button changes text, and the next/prev dic buttons change state. All that, and more, was broken ;p). * Handle corner-cases related to VirtualKeyboard (e.g., Terminal & Text Editor), which screwed with both TouchMenu & Button heuristics because it's weird. * Flag a the dictionary switch buttons as vsync (They trigger a partial repaint of the dictionary content). * Flag the ReaderSearch buttons as vsync They very obviously trigger a partial repaint, much like SkimTo ;p.
KOReader is a document viewer primarily aimed at e-ink readers.
Download • Wiki • Developer docs
Main features
-
portable: runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux and MacOS.
-
multi-format documents: supports fixed page formats (PDF, DjVu, CBT, CBZ) and reflowable e-book formats (EPUB, FB2, Mobi, DOC, CHM, TXT). Scanned PDF/DjVu documents can also be reflowed with the built-in K2pdfopt library.
-
full-featured reading: multi-lingual user interface with a highly customizable reader view and many typesetting options. You can set arbitrary page margins, override line spacing and choose external fonts and styles. It has multi-lingual hyphenation dictionaries bundled into the application.
-
integrated with calibre (search metadata, receive ebooks wirelessly, browse library via OPDS), Evernote (export hightlights), Wallabag, Wikipedia, Google Translate and other content providers.
-
optimized for e-ink devices: custom UI without animation, with paginated menus, adjustable text contrast, and easy zoom to fit content or page in paged media.
-
extensible: via plugins
-
and much more: look up words with StarDict dictionaries / Wikipedia, add your own online OPDS catalogs and RSS feeds, share ebooks with other KOReader devices wirelessly, online over-the-air software updates, an FTP client, an SSH server, …
Please check the wiki to discover more features and to help us document them.
Screenshots
Installation
Please follow the model specific steps for your device:
Android • Cervantes • Kindle • Kobo • Linux • Pocketbook • reMarkable
Development
Setting up a build environment • Collaborating with Git • Building targets • Porting • Developer docs
Support
KOReader is developed and supported by volunteers all around the world. There are many ways you can help:
- fix bugs and implement new features
- translate the program into your language or improve an existing translation
- document lesser-known features on the wiki
- help others with your knowledge on the forum
Right now we only support liberapay donations, but you can also create a bounty to motivate others to work on a specific bug or feature request.
Contributors
