隐私政策

生效日期：2026 年 5 月 19 日

1. 我们收集的信息

We collect information needed to provide PDF to Study Cards, including:

account information such as name, email address, avatar, and authentication data;
uploaded PDFs, pasted notes, transcripts, generated flashcards, and saved decks;
payment and subscription records received from Creem, excluding full card numbers;
usage, device, log, cookie, and security information such as IP address and browser type;
support messages and billing correspondence.

2. 我们如何使用信息

We use information to:

generate, save, export, and manage flashcard decks;
authenticate users and protect accounts;
process payments, credits, renewals, refunds, and subscription status;
provide customer support and service notices;
monitor performance, prevent abuse, and improve product quality;
comply with legal, tax, payment, and security obligations.

3. AI 处理

Text extracted from your PDFs or notes is sent to our AI provider only as needed to generate flashcards. Do not upload sensitive personal, medical, legal, financial, or confidential material unless you are comfortable processing it through the service.

4. 我们共享信息的对象

We use third-party providers to operate the service, including hosting, database, authentication, email delivery, payment processing through Creem, analytics, and AI model access through APIMart. These providers may process information only for the services they provide to us.

5. 支付信息

Payments are handled by Creem. We receive records such as customer email, order ID, subscription ID, product ID, payment status, and timestamps. We do not store full payment card numbers on our servers.

6. 数据保留

We retain account, payment, and saved deck data while your account is active or as needed to provide the service, comply with law, resolve disputes, prevent abuse, and maintain business records. You may request deletion of your account data, subject to legal and payment record retention requirements.

7. 安全

We use reasonable technical and organizational safeguards, including TLS, access controls, server-side secrets, and provider-level security features. No online service can guarantee absolute security.

8. Cookies 与分析

We may use cookies or similar technologies for authentication, preferences, analytics, and fraud prevention. You can manage cookies in your browser. Some cookies are required for login and billing-related flows.

9. 你的权利

Depending on your location, you may request access, correction, deletion, export, or restriction of your personal information. You may also opt out of non-essential marketing emails. Contact us to make a request.

10. 儿童隐私

The service is not directed to children under 13. If you believe a child provided personal information without appropriate consent, contact us and we will take appropriate action.

11. 政策更新

We may update this policy from time to time. The latest version will be posted on this page with an updated effective date.

12. 联系我们

Email: hongan@pdftostudycards.com

Website: https://pdftostudycards.com