Calibre is an e-book library management application, viewer and editor. It's also commonly used for e-book file format conversion and syncing to reader devices. Calibre also simplifies downloading news from the web and converting them into e-book form, and can act as content server for online access to your book collection.
minor feature: Release: 4.22 31 Jul, 2020 New features Edit book: In dark mode, make the preview panel also dark.PDF Output: Headers/footers: Allow displaying the current page number and total number of pages in the top level section/chapter.Edit book: Show EPUB version in window title.Allow testing if a number column is set or not set in coloring/icon/emblem rules.Viewer: Add a setting to control how many pixels a scroll wheel should generate before triggering a page turn.Edit book: a regression in the previous release that caused poor performance when editing large files.DOCX Input: Leave undefined text colors in the input document as undefinedViewer: using a very small font step size not working.Font scanner: Also scan the new win 10 local font pathsViewer: typing values in font size adjust control not working.Improved news sources.Respekt. The Atlantic.