Document Scanner lets you photograph or import paper documents, receipts and notes, finds their edges, corrects the perspective, removes shadows and exports them as PDFs or images.

We do not collect any personally identifiable information, nor do we collect device identifiers, location, contacts or usage data. The app has no account system; all features work without signing in.

The app does not request the internet permission. It is technically unable to send your documents or any other data to our servers, and we have no access to your documents.

Built-in scanner: uses the app's own camera screen. The camera preview is used only on your device to find document edges in real time; nothing is recorded or saved until you press the shutter. All processing happens inside the app.

Google scanner: if your device has Google Play services, the app uses the document scanning screen provided by Google Play services (Google ML Kit document scanner) by default. The scanning screen runs in Google Play services; scanned images are processed on the device and returned to this app. On first use, Google Play services may need to download the scanner module. Data handled by Google Play services is governed by the Google Privacy Policy (https://policies.google.com/privacy). You can switch to always using the built-in scanner in Settings → Scanner.

Importing from your gallery: images you pick in the system picker are copied into the app's private storage for processing. The app does not browse your gallery.

Your documents (original photos, processed pages and page settings) are stored only in the app's private storage. Uninstalling the app or clearing its data in system settings deletes them.

Because documents may contain IDs, receipts and other sensitive content, the documents folder is excluded from Android's cloud backup. Documents are moved to a new phone only if you use the system's device-to-device transfer. A few settings, such as the app language and scanner choice, may be backed up by Android to your own Google account; we have no access to those backups.

When you choose "Save PDF to device" or "Save images to gallery", the files are saved to the Download/Document Scanner or Pictures/Document Scanner folder on your device, where you manage them yourself.

Camera: used only to photograph documents with the built-in scanner. When you use the Google scanner, the camera is used by the Google Play services scanning screen.

Storage (write): only on Android 9 and below, used to save PDFs and images to public folders. Android 10 and above do not need this permission.

The app does not request internet, location, contacts, phone or microphone permissions.

PDFs and images are passed to another app only when you tap Share and choose that app in the system share sheet. That app handles the data under its own privacy policy.

The app does not include any advertising, analytics or crash-reporting SDKs. The Google scanner is provided by Google Play services, as described in section 2.

The app is distributed through Google Play. Depending on your device settings, Google may collect diagnostic information such as installs and crashes, which is governed by the Google Privacy Policy.

The app is not directed at children under 13, and it does not collect personal information from any user, including children.

We may update this policy when the app, the law or our operations change. The updated policy will be published on this page with a new effective date. If a new version materially changes how data is handled, we will notify you prominently in the app.

If you have any questions or requests about this policy or your privacy, please contact us at [email protected].

文档扫描是一款扫描工具，可以用相机拍摄或从相册导入纸质文档、票据、笔记等，自动找边、校正透视、去除阴影，并导出为 PDF 或图片。

我们不收集任何能够识别您个人身份的信息，也不收集设备标识符、位置、通讯录、使用行为等数据。本应用没有账号体系，您无需注册或登录即可使用全部功能。

本应用未申请网络权限，技术上无法把您的文档或任何数据发送到我们的服务器，我们也无法访问您的文档。

内置扫描：使用本应用自己的相机界面。相机画面只在设备上用于实时识别文档边缘，不会录像或保存；只有您按下快门时才会拍照。所有处理都在本应用内完成。

Google 扫描：如果您的设备装有 Google Play 服务，本应用默认使用 Google Play 服务提供的文档扫描界面（Google ML Kit 文档扫描）。扫描界面运行在 Google Play 服务中，扫描的图片在设备上处理后返回给本应用。首次使用时，Google Play 服务可能需要下载扫描功能模块。Google Play 服务对数据的处理适用 Google 隐私权政策（https://policies.google.com/privacy）。您可以在本应用的「设置 → 扫描方式」中改为始终使用内置扫描。

从相册导入：您通过系统选择器选中的图片会被复制到本应用的私有目录中处理，本应用不会浏览您的相册。

扫描的文档（原图、处理结果和页面设置）只保存在本应用的私有存储中。卸载本应用或在系统设置中清除应用数据，会删除这些文档。

为保护可能包含证件、票据等敏感内容的文档，文档目录不会包含在 Android 的云端备份中；只有您在更换手机时使用系统的设备间迁移功能，文档才会随之迁移到新设备。语言、扫描方式等设置可能会通过 Android 系统备份到您自己的 Google 账号，我们无法访问这些备份数据。

当您选择「保存 PDF 到手机」或「保存图片到相册」时，文件会保存到设备的 Download/Document Scanner 或 Pictures/Document Scanner 文件夹，由您自行管理。

相机：仅用于内置扫描时拍摄文档。使用 Google 扫描时，相机由 Google Play 服务的扫描界面使用。

存储写入：仅在 Android 9 及以下系统中，用于把 PDF 和图片保存到公共目录；Android 10 及以上无需此权限。

本应用不申请网络、位置、通讯录、电话、麦克风等权限。

只有在您点击「分享」时，应用才会通过系统分享面板把 PDF 或图片交给您选择的应用。这些应用对数据的处理适用其自身的隐私政策。

本应用不集成任何广告、统计分析或崩溃上报等第三方 SDK。Google 扫描功能由 Google Play 服务提供，见第二条。

本应用通过 Google Play 分发。Google 可能会根据您的设备设置收集应用安装、崩溃等诊断信息，相关处理适用 Google 隐私权政策。

本应用不面向 13 周岁以下儿童，也不会收集任何用户（包括儿童）的个人信息。

我们可能会根据产品功能、法律法规或运营需要更新本隐私政策。更新后，我们会在本页面发布新的隐私政策并更新生效日期。如新版本涉及数据处理方式的重大变化，我们会在应用内以显著方式提示。

如果您对本隐私政策或个人信息保护有任何疑问、意见或请求，可以通过邮箱 [email protected] 联系我们。