The app saves your reading position so that you can quickly resume where you left off when you re-open it. The toolbar across as the top of the app lets you can quickly jump to any given page (just enter the page number in the box), has page navigation, and a toggle to get access to a book’s contents page in a sidebar. epub files the best.Īnd that’s crucial as it doesn’t support any other formats. As such you won’t find any collection management or metadata editing features here.īut, out of all the apps on this list, Easy Ebook Viewer renders. The succinctly named ‘ Easy Ebook Viewer‘ is, as you might guess from its name, an ebook viewer. You can install the Bookworm eBook app on Ubuntu 16.04 LTS and above by adding this PPA to your software sources: sudo add-apt-repository ppa:bookworm-team/bookworm sudo apt update & sudo apt install bookworm Easy eBook Viewer (GTK+) Summary: Even though handling of PDFs is poor, Bookworm is the best all-round eBook reader app on Ubuntu. PDF rendering is pretty poor, however, and the app lacks proper tools for page zoom, dual page, etc that dedicated apps like Evince (for. Options to customise the reader appearance. ![]() Lets you edit metadata, including cover art.Other toolbar options allow you to view a table of contents (should there be one), bookmark a page, and search for text or phases. You can use your keyboard arrow keys to advance to the next/prev page, or drag the scrubber along the progress slider displayed at the bottom of the window. The clean, uncluttered UI of Bookworm helps keep focus squarely on the content. The app includes 3 separate profile themes: light (pictured), sepia, and dark, which layers white text over a dark background. So in this iteration the UX is rudimentary, but hopefully the underlying zooming mechanics are robust.When reading an ePub or mobi book you can increase/decrease the font size, adjust the margins, tweak the line height and change the background/text color using a handy pop-over menu in the Bookworm toolbar. There is also the thorny issue of interfering with authored scripted interactions, which are very common in fixed layout publications. directly by interacting with the document's surface (rather than somewhere else in the GUI), but this is technically tricky to implement due to how Thorium's webviews are sandboxed / secured. Lastly, ideally Thorium would support zooming/scrolling/panning etc. ![]() the current Thorium UX is not great (there is some event throttling and debouncing in order to filter out noise from the scroll / touch / wheel gestures), but we now have a reasonable compromise that seems to work for multiple input devices. Also note that MacOS typical fast-firing kinetic events (even when barely swiping / flinging the trackpad) caused implementation headaches due to how hugely the stream of events differ from a typical mouse wheel "clicky" discrete steps. Note that MacOS "natural" direction can be quite counter-intuitive (I am not sure how to handle this in HTML/JS, as the DOM events don't convey the change of direction). The mouse wheel / trackpad scroll gesture can also be used when hovering on top of this button, to increase/decrease by steps of 10% zoom level. ![]() The zoom button in the toolbar can be clicked to cycle through a short predefined list of scaling values (with a special step for "fit into view"). This will be released soon in v1.7.2, but in the meantime feel free to try the feature using an automated build: A zoom feature for fixed-layout documents is now available in Thorium.
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