読書尚友(青空文庫ビューア)

hishida

About this app

Naotomo Reading is a Japanese vertical writing / ebook viewer. You can comfortably read more than 10,000 works published in Aozora Bunko.

* Differences from the free version are PDF support, multiple bookshelves, Aozora Bunko batch download, advertisement hiding, and OPDS catalog library.

-Supports text, html, zip (displays text files in the archive), PDF, ePub, docx, odt
・ Supports image zip
-Character code automatic judgment (Shift_JIS, EUC, UTF-8, UTF-16, JIS)
・ List of works by author, work, field (NDC), year of publication, original work, newly released work, access ranking
・ Download from Aozora Bunko
・ Bookshelf
・ Bookmarks and markers
-Display local files
・ Search for titles
・ Corresponds to the main notes of Aozora Bunko (page breaks, indentation, headings, JIS 3rd level, 4th level, Unicode, return points, okurigana, emphasis marks, lines, illustrations, ruby, etc.)
・ Table of contents (created from the heading notes of Aozora Bunko)
・ Character string search in documents
・ Cooperation with external applications by sharing selected character strings
・ Start from "Blue Sky Provider"
·Library card
-Font size, font change (IPA Mincho built-in. System fonts and custom fonts can be used), Source Han Serif / Hanazono Mincho B download
・ Background color ・ Background image
・ Page orientation (vertical writing / horizontal writing)
-Specify the screen rotation operation (terminal setting, vertical fixing, horizontal fixing)
・ OPDS Catalog Library
・ Text-to-speech
・ Pop-up dictionary linked with EB Pocket

* To display local files on Android 10, you must first select a directory and give permission.

What’s new

2026/08/16 3.3.3
- 回転時に表示位置が保存されない問題を修正
2026/08/10 3.3.2
- ePubビットマップ画像の外字の改良
2026/07/30 3.3.1
- 3.3.0の範囲選択の不具合修正
2026/07/29 3.3.0
- 縦スクロール(横書き時のみ)
- SVG画像対応
2026/07/18 3.2.0
- targetSdkVersion=36
- 画像ビューア改良
2026/07/06 3.1.0
- ePub文書(一括読み込みオフ時)、および複数テキストファイルのzipで、スワイプで前後のファイルに移動(従来はタップのみ)
- メモ機能追加
- foldable端末のアスペクト比で、段組み表示に対応
2026/06/27 3.0.0
- rar5形式の書庫に対応
- ePubで空行が無視される問題を修正。
- ePubと本棚の動作の安定性の向上。
2026/06/22 2.28.0
- ePubの一括読み込み
- 画像表示でアンチエイリアスを有効に
2026/06/18 2.27.0
- 本棚の個数の増加、本棚名の編集