Jianyi Privacy Policy

We take your privacy seriously. This policy explains what information we collect, how we use and store it, and the choices you have. Please read it carefully before using the Jianyi service.

1. Information We Collect

1. Account information

Email address: used for registration, sign-in, identity verification, and necessary notifications (verification emails, password recovery, security alerts).
Password: stored encrypted with the argon2id algorithm; we cannot view the plaintext.
Sign-in security records: sign-in IP addresses and browser identifiers (used for abnormal sign-in detection and account protection).

1.1 Information we do NOT collect

We do not collect:

Phone numbers (we do not offer phone-number registration)
National ID numbers or real names (unless required by law)
Payment card information (payments are processed by third-party channels; we do not store card details)
Location information (GPS)
Contacts, photos, or other device-permission data

2. How Your Document Data Is Handled

2.1 Documents are sent to third-party translation engines

The content of the PDFs you upload is transmitted to the third-party translation engines we use (such as DeepSeek and Zhipu) to perform the translation. Transmission is encrypted end to end (TLS). After translation completes, the engines do not retain copies of your documents.

2.2 Cached outputs are reused across users for identical content

Translation outputs are cached on the platform. When another user uploads a document with identical content and selects the same target language, the cache is hit and the output is reused directly (the user enjoys a discount; the platform saves engine costs). Cached outputs contain no uploader identity information and cannot be traced back to a specific user.

2.3 Files are stored on third-party cloud services

Your documents and translation outputs are stored in a private bucket on a third-party cloud service (Alibaba Cloud OSS), with encrypted transfer and least-privilege access control.

2.4 File retention

File type	Retention	On expiry
Uploaded but never translated	24 hours	Auto-deleted
Task files submitted for translation	30 days	Auto-deleted
Translation outputs (cache)	Retained long-term	You may request content-based deletion

3. How Payment Information Is Handled

Payments are processed independently by third-party payment channels. We only receive payment-result notifications and order amounts; we do not store your bank card information, payment PIN, or other sensitive payment data.

4. Purposes of Use

The information we collect is used only for:

Providing the service: account management, document translation, credit billing, order processing.
Security: abnormal sign-in detection, brute-force and bot-abuse prevention.
Service improvement: aggregated usage statistics (no personal identity).
Legal compliance: record retention required by laws and regulations.

5. Information Disclosure

We do not sell your personal information to any third party. Disclosure may occur only:

With your explicit consent;
As required by laws and regulations or a binding order of a judicial authority;
To protect the rights, property, or safety of Jianyi, its users, or the public (to the extent necessary).

6. Data Security

TLS-encrypted transfer across the site;
Passwords stored with irreversible argon2id hashing;
Sensitive configuration such as engine API keys stored encrypted;
Daily database backups with point-in-time recovery (PITR);
Regular security reviews and vulnerability fixes.

7. Your Rights

7.1 Access and correction

You can view your account information and file list in Account Settings at any time.

7.2 Right to deletion

File deletion: you may delete unused uploaded files at any time.
Cache deletion: you may request deletion of translation-cache outputs for specific content.

7.3 Data portability

You can download your translation outputs at any time (within 30 days). To export your account data, contact us.

8. Cookies and Local Storage

We use HttpOnly cookies to maintain sign-in sessions and security protection, not for ad tracking. Specifically:

jy_at / jy_rt: sign-in session tokens (HttpOnly, unreadable by scripts);
jy_csrf: cross-site request forgery protection token.

9. Minors

This service is not directed at children under 14. If you are under 18, please use the service under a guardian's guidance and register only after your guardian has agreed to this policy.

10. Policy Updates

We may update this policy from time to time. For material changes we will notify you via site announcements or email. If you continue using the service after an update, you are deemed to accept the updated policy.

11. Contact Us

If you have any questions, suggestions, or complaints about this policy, contact us at:

Email: support@jianyipdf.com