Furigana PDF

Furigana PDF

Add Furigana to PDF Documents

2 ratings
13 reviews
Free

Details

  • Released
  • Updated
  • June 14, 2020
  • September 15, 2025

Features

Furigana PDF video #1 for iPhone
Furigana PDF screenshot #2 for iPhone
Furigana PDF screenshot #3 for iPhone
Furigana PDF screenshot #4 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

Easily add furigana reading aids to Japanese PDF documents. This app automatically annotates Kanji characters and allows customization to match your PDF's layout. You can also scan paper documents and add furigana, with all processing done offline for privacy.

Automatic furigana annotation
Customizable furigana display
Scan and annotate paper documents
Offline processing for privacy
Supports horizontal and vertical text
Export annotated PDFs
Show original description

What's New in Furigana PDF

1.2.5

September 15, 2025

- iOS26 compatibility

User reviews

修正or部分的に選ぶ機能が欲しい

間違ったルビなどが修正できる機能があればとっても助かります...!
あとやっぱり全てにルビを振ってしまうと画面の情報量が多いため、選択した部分だけルビを振る...などあればとても良いなと思いました...!

フリガナの大きさと位置が・・・

以前は大丈夫だったのですが、今はフリガナの大きさや色を変更すると、フリガナの大きさや位置がメチャクチャになることがあります。

惜しい!

なかなかの精度でルビをふってくれます!
が、間違った読みのルビや重なりを簡単に直せる機能ようにして欲しいです!

Peak Function

This app is incredible. No where else can take a PDF and add Furigana to it, they all want to take pictures but that’s just so dysfunctional. This app has an almost 100% success rate in accurate pronunciation. Names of course are hard, and sometimes kanji has multiple ways to pronounce it based on context. Four stars because the traditional writing format of top to bottom right to left has much more difficulty in adding Furigana.
Show more

iOS18.5ではひらがな表示できなくなりました

お気に入りなので、是非正常に動作するようにご対応をお願いします。

Developer apps

FAQ

Does Furigana PDF have ads?

No, Furigana PDF does not contain advertisements. The app is completely free to use without any ad interruptions.

What devices does Furigana PDF support?

Furigana PDF is available on Mac, iPhone, and iPad, allowing users to annotate Japanese PDFs across multiple Apple devices.

How often is Furigana PDF updated?

The latest version of Furigana PDF is 1.2.5, last updated on September 15, 2025. Updates are provided to improve functionality and address any issues.

What is the age rating for Furigana PDF?

Furigana PDF has an age rating of 4+, making it suitable for a wide range of users, including younger learners.

Can I use Furigana PDF offline?

Yes, Furigana PDF works entirely offline. All annotation processing is done on your device, ensuring your privacy and eliminating the need for an internet connection.

What languages does Furigana PDF support?

Furigana PDF is specifically designed for reading Japanese texts. It automatically adds furigana to Kanji characters within PDF documents.

What happens if furigana display fails in Furigana PDF?

In rare cases, furigana display may fail if crucial layout information is absent from the source PDF. This is a limitation based on the PDF's structure.

How does Furigana PDF handle user privacy?

Furigana PDF respects user privacy by processing all annotations offline. No data ever leaves your device, and no internet connection or account login is required.