Calibre 2.46 发布，此版本更新内容如下：
PDF Input: Add support for PDF outlines (bookmarks), if present, they are used as the metadata Table of Contents.
Closes tickets: 1524522
Book polishing: Add tool to losslessly compress images in the book in order to reduce its filesize, without affecting image quality
Edit Book: Add a new tool to compress images in the book losslessly, accessed from the Tools menu
Kobo driver: add support for new Kobo firmware
Closes tickets: 1524742
Bulk metadata edit dialog: Allow entering fractional numbers into the series number start with control.
Closes tickets: 1523253
Speed up moving libraries by using hardlinks instead of file copies when moving to a location on the same filesystem
Get Books: Disable the Amazon EU stores, at Amazon's request
Fix moving libraries via calibre leaving behind a copy of the metadata_db_prefs_backup.json file in the original library folder
MOBI Input: Warn about corrupted trailing data entries, instead of aborting. Getting some, even partially corrupted text is better than no text.
Closes tickets: 1521830
Book details: Fix single value custom text column not clickable.
Closes tickets: 1521004
Saving to disk: Fix custom date column being rendered in GMT instead of the local time zone when used in a save to disk template.
Closes tickets: 1520895
New York Review of Books
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，功能十分强大。