Interchange - eBook Converter

Functional Features
1. Supports multiple format conversions: txt, epub, mobi, azw, azw3, prc, pdf, markdown, docx, htmlz, fb2, etc. For txt files, automatically extract chapter directories.
2. Support removing DRM protected book files (Kindle DRM).
3. A comprehensive e-book reader that supports multiple formats: txt epub、mobi、azw、azw3、prc、pdf。 Powerful custom layout layout, including line spacing, paragraph spacing, first line indentation, top and bottom spacing, left and right spacing, custom background, custom font, global progress drag, and global search. Rich note taking and bookmarking functions.
4. Support custom book covers, online search, and album selection, even txt can have beautiful covers. Simultaneously editable, cropped, and filtered.
5. Provide multiple page turning methods, including overlay, translation, simulation, scrolling, automatic scrolling reading, landscape reading, and dual column reading.
6. Supports comic reading, with maximum screen ratio and maximum clarity for reading comics. Support scrolling mode for reading comics.
7. Powerful book management function, supporting grouping, renaming, sorting, dragging and merging groups, batch deletion, and moving operations.
8. Support modifying book element data such as title, author, ASIN, ISBN, time, publisher, etc.
9. Multiple file transfer methods, importing book files through WiFi, computer, Baidu cloud storage, local devices, and other application sharing methods for convenience and ease.
10. Quickly decompress compressed files such as zip, rar, 7z, etc.
11. Password protection function, can set gesture password, facial recognition unlock.
12. There are more features waiting for you to explore.

[Automatic Subscription Instructions]
--Subscription period: 1 month
--Price: ¥ 18
--Subscription auto renewal, unless auto renewal is closed at least 24 hours before the end of the current term.
--Payment will be charged to iTunes account upon confirmation of purchase
--The account will receive renewal fees within 24 hours before the end of the current period, and the renewal fees will be determined
--Subscription can be managed by users themselves, and automatic subscription can be disabled by entering their personal account on the App Store after purchase
--If any unused portion of the free trial period is provided, it will be forfeited upon the user's purchase of the publication's subscription (if applicable)

--Subscription period: 1 year
--Price: ¥ 30
--Subscription auto renewal, unless auto renewal is closed at least 24 hours before the end of the current term
--Payment will be charged to iTunes account upon confirmation of purchase
--The account will receive renewal fees within 24 hours before the end of the current period, and the renewal fees will be determined
--Subscription can be managed by users themselves, and automatic subscription can be disabled by entering their personal account on the App Store after purchase
--If any unused portion of the free trial period is