JPKI eSign signature on PDF Android

JPKI eSign signature on PDF

JPKI eSign, add digital siganature on PDF using My Number Card, without reader

Features & Capabilities

Features
[My Number Card (Japan ID Card)]
・JPKI (Japanese Public Key Infrastructure) AP
JPKI eSIgn to PDF
Obtain electronic certificate and verify expiration date
・Card Info confirmation AP
Read card info and face photo
・PIN management
Retrieve user authentication PIN
Read Password retry count
Reset PIN

[Driver's license]
・Read driver's license information and face photo

[Residence card and Special permanent residence card】
・Read residence information and facial photo

[PDF tools]
・Display PDF
・Create one PDF from multiple photos and PDFs
・Scan to PDF with camera
・Verify PDF signed by JPKI

Examples of using JPKI signatures
・e-Tax electronic documents for national tax returns
・Registration and deposit network of the Legal Affairs Bureau
・Real estate registration procedures
・Commercial and corporate registration procedures
・Moveable property transfer registration procedures
・Debt transfer registration procedures

Electronic signature data

Signature format adbe.pkcs7.detached
・Signature algorithm SHA256withRSA
・Type Sig
・Filter Adobe.PPKLite
・SubFilter adbe.pkcs7.detached
・Name <Name on My Number card>
・M <Date and time of digital signature>
・ByteRange <Byte range of part used to generate hash value>
・Contents <PKCS#7 signature data binary format in hexadecimal>

Notes
◇About reading My Number Card
・Please hold the card over the smartphone until reading is complete.

-As reading is not accurate on a metal desk, try moving the My Number Card and smartphone away from the desk.
-If the response is poor, try removing the cover or case.

-If the card is not held over the smartphone in the correct position, reading will not be possible.
For details, please check the support site below.
https://www.jpki.go.jp/faq/trouble/iphone.html
◇About passwords

- The signature password is 6-16 alphanumeric characters, and the user authentication PIN is a 4-digit number.
- If you enter the signature password incorrectly five times in a row, or the user authentication password incorrectly three times in a row, the password will be locked.
- You can unlock the password at your local municipal office.

EULA https://www.99zz.net/%e5%88%a9%e7%94%a8%e8%a6%8f%e7%b4%84/

User Growth & Download Statistics

App
By:
二進合同会社
Downloads:
2,679 5
Version:
2.2.1 Last updated: 2025-10-28
Version code:
193
Creation date:
2020-07-25
Publisher country:
JP JP
Permissions:
  • android.permission.ACCESS_COARSE_LOCATION Very high risk
  • android.permission.ACCESS_FINE_LOCATION Very high risk
  • android.permission.CAMERA Very high risk
  • android.permission.READ_EXTERNAL_STORAGE High risk
  • android.permission.WRITE_EXTERNAL_STORAGE High risk
  • com.google.android.gms.permission.AD_ID Moderate risk
  • android.permission.ACCESS_ADSERVICES_AD_ID Low risk
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION Low risk
  • android.permission.INTERNET Low risk
  • android.permission.NFC Low risk
  • See more
Size:
26.88MB
Email:
sh*****@99zz.net
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Google Play Store
Data ingested on:
2026-06-13
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.
Developed by:
二進合同会社
Google Play Store
https://play.google.com/store/apps/details?id=com.education.jisten
Email:
sh*****@99zz.net
Website:
https://www.99zz.net

User Reviews

Overall it is an useful app for most of Japan residents, worth installing. It seems much better than official the JPKI app, no crush when reading my number card. However, the PDF verification function doesn't work, shows me just a black out screen. UPDATE: The above issue should be ok, they worked very quickly, thanks👍
by Ha*****, 2024-08-24
View all user reviews ›

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