PDF Reader is a tool for viewing PDF files. You can open PDFs from your phone or from other apps, search the text, jump using the table of contents, zoom in, and share or print through the system.

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 files or any other data to our servers, and we have no access to your files.

When you pick a PDF in the system file picker, or choose to open or share a PDF with PDF Reader from another app, a copy is saved in the app's private storage so you can open it again from the Recent list. The original file is not changed.

The app keeps a local record of the file name, size, page count, the last page you read and whether you starred it, and creates a first-page thumbnail for files without a password. All of this stays on your device.

You can remove a file from the list on the home screen, or clear recent files in Settings (starred files are kept); the app deletes the matching copies. When the copies take up more than 500 MB, the app automatically deletes the copies you have not opened for the longest time, except starred ones. Uninstalling the app or clearing its data in system settings deletes all copies and records.

Opened files and reading history are not included in the Android system backup. Only settings such as night mode and keep screen on are backed up to your own Google account (depending on your backup settings). We have no access to those backups.

When you open a password-protected PDF, the password you enter is only used on your device to decrypt that file. It is never stored or sent anywhere.

To display the content, the app creates a temporary decrypted copy in its private cache and deletes it as soon as you leave the reader. No thumbnail is created for protected files; the Recent list shows a lock icon instead. The copy kept in Recent is the original protected file, so you need to enter the password again next time.

The app does not request any system permissions, including internet, storage, camera, microphone, location or contacts.

Files on your phone are accessed through Android's Storage Access Framework: the app can only read files that you explicitly choose in the system file picker, or that another app explicitly hands to it.

When you tap a web, email or phone link in a PDF, the app asks you first and only passes the link to a browser or another app after you confirm. Those apps handle the data under their own privacy policies.

A file is passed to another app only when you tap Share and choose that app in the system share sheet. When you print, the file is handed to the system print service, where you choose a printer or save as PDF.

The app does not include any advertising, analytics or crash-reporting SDKs.

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 (https://policies.google.com/privacy).

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].

PDF 阅读器是一款查看 PDF 文件的工具，可以打开手机里或其他应用发来的 PDF，搜索文字、按目录跳转、放大阅读，并通过系统分享或打印。

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件或任何数据发送到我们的服务器，我们也无法访问您的文件。

您通过系统文件选择器选择的 PDF，或在其他应用中选择「用 PDF 阅读器打开」「分享」的 PDF，会复制一份到本应用的私有存储中，以便您之后从「最近」列表再次打开。原文件保持不变。

应用会在本地记录文件名、大小、页数、上次读到的页码和是否收藏，并为没有密码的文件生成首页缩略图。这些内容只保存在您的设备上。

您可以在首页把文件从列表中移除，或在设置中清除最近打开的文件（收藏的文件会保留），应用会同时删除对应的副本。副本总大小超过 500 MB 时，应用会自动删除最久没有打开、且未收藏的副本。卸载本应用或在系统设置中清除应用数据，会删除所有副本和记录。

打开的文件和阅读记录不会进入 Android 系统备份；只有夜间模式、屏幕常亮等设置会随系统备份到您自己的 Google 账号（取决于您的系统备份设置）。我们无法访问这些备份数据。

打开有密码保护的 PDF 时，您输入的密码只在本机用于解密这份文件，不会被保存或发送到任何地方。

为了显示内容，应用会在本应用的私有缓存中生成一份临时的解密副本，离开阅读页面后立即删除。有密码的文件不生成缩略图，「最近」列表里只显示锁形图标。保存在「最近」里的仍是原来有密码的文件，下次打开需要重新输入密码。

本应用不申请任何系统权限，包括网络、存储、相机、麦克风、位置、通讯录等。

读取手机里的文件通过 Android 的存储访问框架完成：只有您在系统文件选择器中明确选择的文件，或其他应用明确交给本应用打开的文件，应用才能读取。

点击 PDF 中的网页、邮件或电话链接时，应用会先询问您是否打开，确认后才交给浏览器等应用处理。相关应用对数据的处理适用其自身的隐私政策。

只有在您点击「分享」时，应用才会通过系统分享面板把文件交给您选择的应用；打印时，文件交给系统打印服务，由您选择打印机或另存为 PDF。

本应用不集成任何广告、统计分析或崩溃上报等第三方 SDK。

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（https://policies.google.com/privacy）。

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。