Watermark Tool Privacy Policy / 隐私政策
Watermark Tool is an offline image editing app for Android. Core watermark removal, watermark adding,
and signature processing run on your device.
Watermark Tool 是一款面向 Android 的离线图片编辑应用。核心去水印、加水印与签名处理均在设备本地完成。
1. Data We Handle / 我们处理的数据
We do not require an account to use the app. Core editing features process selected images locally on your device and do not upload them to our own servers.
使用本应用不需要注册账号。核心编辑能力会在设备本地处理你选择的图片,不会上传到我们的自有服务器。
- Photos selected with the Android Photo Picker or document picker are used only to load, edit, export, save, or share results on the device.
- 你通过系统 Photo Picker 或文档选择器选中的图片,仅用于在本机加载、编辑、导出、保存或分享结果。
- Firebase Analytics and Firebase Crashlytics may collect app activity, crash logs, diagnostics, and device or app identifiers needed for analytics and stability monitoring.
- Firebase Analytics 与 Firebase Crashlytics 可能会收集应用活动、崩溃日志、诊断信息,以及用于分析和稳定性监控所需的设备或应用标识符。
- The app also stores user-created assets and settings locally so they can be restored later.
- 应用还会在本地保存你创建的素材和设置,以便后续恢复使用。
2. Data Stored Locally On Your Device / 存储在你设备本地的数据
To support reusable editing assets and history, the app keeps some information in internal app storage, Room, and DataStore.
为了支持可复用编辑素材和历史记录,应用会在内部存储、Room 与 DataStore 中保存部分信息。
- Custom gradient presets and lightweight preferences are stored in DataStore.
- 自定义渐变预设和轻量偏好设置会保存在 DataStore 中。
- Imported custom font files are copied into app-private storage and indexed locally.
- 导入的自定义字体文件会复制到应用私有存储,并在本地建立索引。
- Imported signature source images and generated transparent signature templates are stored in app-private storage.
- 导入的签名原图和生成后的透明签名模板会保存在应用私有存储中。
- History records may include saved file URI, display name, export format, save location, width, height, hidden-watermark flag, and creation time.
- 历史记录可能包含保存文件 URI、显示名称、导出格式、保存位置、宽高、隐形水印标记和创建时间。
3. Photos, Files, and Permissions / 图片、文件与权限
The app follows Android privacy-first access patterns and avoids unnecessary broad media access in normal flows.
应用尽量遵循 Android 的隐私优先访问方式,在常规流程中避免申请不必要的整库媒体权限。
- Image selection primarily uses the Android system Photo Picker, so you choose specific images instead of granting access to your entire library.
- 图片选择优先使用 Android 系统 Photo Picker,因此你选择的是具体图片,而不是授予整个媒体库访问权限。
- If you capture a signature photo, the image is written to app-controlled storage and used only to build an offline signature template.
- 如果你拍摄签名照片,图片会写入应用控制的存储位置,并仅用于生成离线签名模板。
- When you save to Gallery, export to Downloads, or share a result, Android system components handle the destination you choose.
- 当你保存到相册、导出到下载目录或分享结果时,目标位置由你调用的 Android 系统组件处理。
4. Sharing and Third Parties / 共享与第三方
We do not sell your personal data. Core editing images are not sent to our own backend. Some technical data may be sent to Google Firebase services included in the app.
我们不会出售你的个人数据。核心编辑图片不会发送到我们的自建后端。应用中集成的 Google Firebase 服务可能会接收部分技术性数据。
- Analytics and crash diagnostics may be transmitted to Google Firebase over encrypted connections for product analytics and app stability.
- 分析数据和崩溃诊断信息可能会通过加密连接传输给 Google Firebase,用于产品分析和应用稳定性监控。
- User photos, custom fonts, and signature templates are not sold or shared for advertising by the app itself.
- 应用本身不会出售或用于广告目的共享你的图片、自定义字体或签名模板。
5. Retention / 数据保留
Local content remains on your device until you delete it, clear app data, or uninstall the app.
本地内容会一直保存在你的设备上,直到你主动删除、清除应用数据或卸载应用。
- Fonts, signature templates, gradient presets, and history records remain available until removed by you.
- 字体、签名模板、渐变预设和历史记录会持续保留,直到你自行移除。
- Firebase analytics or crash data may be retained according to Google Firebase retention policies.
- Firebase 相关的分析或崩溃数据会按 Google Firebase 自身的数据保留策略保存。
6. Your Controls / 你的控制权
You can manage most data directly inside Android or inside the app.
大部分数据都可以由你直接在 Android 系统或应用内管理。
- You can clear app data or uninstall the app to remove app-private local data.
- 你可以通过清除应用数据或卸载应用来移除应用私有本地数据。
- You can delete imported fonts, signature templates, gradient presets, and history entries from the Settings and History screens.
- 你可以在“设置”和“历史”页面删除导入字体、签名模板、渐变预设和历史记录。
- You can stop granting access to new photos by not selecting items through Photo Picker or document selection.
- 你也可以通过不再使用 Photo Picker 或文档选择器选择新图片,停止授予新的图片访问。
7. Security / 安全措施
We use Android app sandboxing, app-private storage, and standard platform sharing mechanisms to reduce unnecessary data exposure. Data sent to Firebase services is transmitted over encrypted network connections.
我们使用 Android 应用沙箱、应用私有存储以及标准系统分享机制,尽量减少不必要的数据暴露。发送给 Firebase 的数据会通过加密网络连接传输。
8. Children / 未成年人
The app is not directed to children under the minimum age required by applicable law without parental or guardian involvement.
在适用法律要求的最低年龄以下,未经父母或监护人参与,本应用不面向儿童提供服务。
9. Policy Updates / 政策更新
We may update this policy when app features, third-party services, or compliance requirements change. Material updates will be reflected in the in-app page and this public URL.
当应用功能、第三方服务或合规要求发生变化时,我们可能更新本隐私政策。重要更新会同步反映到应用内页面和公开隐私政策地址。
10. Contact / 联系方式
For privacy-related questions, contact mopengaidaodi@gmail.com.
如有隐私相关问题,请发送邮件至 mopengaidaodi@gmail.com。
Public privacy policy URL / 公开隐私政策地址:https://www.aidaodi.xyz/privacy-policy.html