Calibre 2.83 发布了，Calibre 是电子书管理软件，支持 Amazon、Apple、Bookeen、Ectaco、Endless Ideas、Google/HTC、Hanlin Song 设备及格式。
新特性：
PDF Output: Default to generating PDFs with a page size of letter instead of taking the page size from the output profile.
PDF/DOCX Output: Add separate, pdf/docx specific, page margin settings that override the common settings.
Table of Contents tool: Add an undo button
Metadata jacket: Show custom rating columns using stars
Metadata jacket: Change formatting of series to match that used by the book details panel. Also allow access to the raw series name and number when customizing the jacket template.
calibredb check_library: Vacuum database when running the check
Check Book: Add a check for empty identifier elements
Bug 修复：
Edit book/Book polishing: When adding a cover to an EPUB 3.0 file set the svg property if a SVG cover wrapper is used
Refresh the book list when a User Category is added/edited.
EPUB metadata: Fix deleting ISBN from EPUB file could result in an EPUB file without a package identifier if the ISBN was used as the package identifier.
Amazon metadata download: Fix title and author names being bold in the downloaded comments when using bing to get amazon metadata.
PDF Output: Fix a regression that broke PDF Output for documents containing mathematics.
E-book viewer: Fix a regression that broke the "Clear recently read books" action in the viewer
下载地址：
http://calibre-ebook.com/download
来自:开源中国社区
