Privacy Policy

Last updated: July 30, 2026

Overview

PPT Remote Control ("the Extension") is a Chrome browser extension that enables remote slide control and speaker notes management for online presentations (Tencent Docs, Google Slides, Microsoft PowerPoint). This Privacy Policy explains what data the Extension collects, how it is used, and how it is protected.

Permissions Justification

The <all_urls> host permission is required solely for chrome.tabs.captureVisibleTab to capture slide screenshots — the core feature for displaying real-time slide previews on remote viewers' devices. Content scripts are restricted by the matches field to only inject on supported PPT websites:

• https://docs.qq.com/slide/* — Tencent Docs
• https://doc.weixin.qq.com/slide/* — WeCom Docs
• https://docs.google.com/presentation/d/* — Google Slides
• https://*.powerpoint.cloud.microsoft/* — Microsoft PowerPoint
• https://*.officeapps.live.com/* — Microsoft Office Online

The extension does not access, read, or monitor any other websites. The broad host permission is a technical requirement of the Chrome Extensions API for screen capture and cannot be narrowed further.

• activeTab: Capture visible tab content (screenshots) when the user is on a PPT page
• storage: Store user preferences (language, server address, API token)
• scripting: Inject scripts into PPT pages for slide detection and control
• Host permissions: <all_urls> — required by Chrome API for captureVisibleTab; content script injection is limited to PPT domains only

Data Collection and Usage

1. Data Stored Locally

The Extension stores the following data exclusively in your browser's local storage (chrome.storage.local). None of this data is transmitted to us or any third party:

2. Data Transmitted to the Relay Server

The Extension communicates with a self-hosted relay server (default: http://vipbyte.cn:24680) that you control. You can change this address at any time. The following data is transmitted only to this server and only when you actively use the remote control feature:

Core Functionality (Required for Slide Control)

Optional Feature (Speaker Notes — requires Token)

3. Device Environment Information (Token Application Only)

When you voluntarily apply for an API Token to enable the speaker notes feature, the following information is included in the application request sent to your relay server:

• Browser user agent (navigator.userAgent)
• Browser language (navigator.language)
• Screen resolution (screen.width × screen.height)
• Operating system platform (navigator.platform)
• Time zone (Intl.DateTimeFormat().resolvedOptions().timeZone)
• Extension ID and version
• Application timestamp

This information is only collected when you click "Submit Application" and is used solely for the admin to identify and approve your Token request. It is not collected during normal usage.

4. Page Screenshot Capture

The Extension uses chrome.tabs.captureVisibleTab to capture the visible area of the current browser tab as a JPEG image. This screenshot:

• Is only captured when the remote control feature is actively running
• Is transmitted in real-time to your self-hosted relay server via WebSocket
• Is used exclusively for displaying a preview on remote viewers' devices
• Is not stored persistently by the Extension
• Is not sent to any third-party service

5. WebSocket Communication

The Extension maintains a persistent WebSocket connection to your relay server during active remote control sessions. All data transmitted over this connection is described in Section 2 above. The connection is terminated when you stop remote control or close the browser tab.

Data NOT Collected

The Extension does NOT collect, store, or transmit:

• Personal identity information (name, email, phone number)
• Browsing history or URL patterns outside the supported PPT platforms
• IP address or geolocation data
• Cookies or authentication tokens from PPT platforms
• Keyboard input or form data outside the Extension's own UI
• Any data for advertising, analytics, or tracking purposes

Data Retention

• Local storage: Data persists in your browser until you clear extension data or uninstall the Extension
• Relay server: Data retention depends on your relay server configuration. By default, speaker notes are stored in a local SQLite database on the server. Rooms expire after 2 hours of inactivity

Third-Party Services

The Extension does not integrate with or transmit data to any third-party analytics, advertising, or tracking services. All communication is between the Extension and your self-hosted relay server.

Security

• All data is transmitted between the Extension and your relay server. We recommend configuring your relay server with HTTPS to encrypt data in transit
• API Tokens are stored in Chrome's local storage and transmitted via HTTP headers (Authorization: Bearer <token>)
• Screenshots are transmitted in real-time and not persisted by the Extension

Your Control

You have full control over your data:

• Change relay server: Modify the server address in the Extension's Config tab at any time
• Stop remote control: Click "Stop Remote Control" to immediately end the session
• Clear Token: Use the "Clear Local Token" button in the Token tab
• Uninstall: Removing the Extension from Chrome deletes all locally stored data

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date.

Contact

For questions about this Privacy Policy, please open an issue on the project's GitHub repository.

隐私政策

最后更新：2026 年 7 月 30 日

概述

PPT 手机遥控器（"本插件"）是一款 Chrome 浏览器扩展，用于实现在线演示文稿（腾讯文档、Google Slides、Microsoft PowerPoint）的手机远程翻页控制和备注管理。本隐私政策说明本插件收集哪些数据、如何使用以及如何保护。

权限说明

<all_urls> 主机权限仅为 chrome.tabs.captureVisibleTab（页面截图）功能所必需——这是遥控端实时预览幻灯片画面的核心功能。Content Script 的 matches 字段已严格限制为仅在以下受支持的 PPT 网站上注入脚本：

• https://docs.qq.com/slide/* — 腾讯文档
• https://doc.weixin.qq.com/slide/* — 企业微信文档
• https://docs.google.com/presentation/d/* — Google Slides
• https://*.powerpoint.cloud.microsoft/* — Microsoft PowerPoint
• https://*.officeapps.live.com/* — Microsoft Office Online

本扩展不会访问、读取或监控任何其他网站。全域主机权限是 Chrome 扩展 API 截图功能的技术要求，无法进一步缩小范围。

• activeTab：用户位于 PPT 页面时截取可见标签页内容（截图）
• storage：存储用户偏好设置（语言、服务器地址、API Token）
• scripting：向 PPT 页面注入脚本，用于检测幻灯片和翻页控制
• Host 权限：<all_urls> — Chrome API 截图功能的技术要求；Content Script 注入仅限于上述 PPT 域名

数据收集与使用

1. 本地存储的数据

本插件将以下数据仅存储在您浏览器的本地存储（chrome.storage.local）中，不会传输给我们或任何第三方：

2. 传输到中继服务器的数据

本插件与您自行部署的中继服务器（默认地址：http://vipbyte.cn:24680）通信，该服务器由您控制，您可随时更改地址。以下数据仅在您主动使用远程控制功能时发送到该服务器：

核心功能（翻页控制必需）

可选功能（备注 — 需 Token）

3. 设备环境信息（仅 Token 申请时）

当您主动申请 API Token 以启用备注功能时，申请请求中会包含以下信息，发送到您的中继服务器：

• 浏览器 User Agent (navigator.userAgent)
• 浏览器语言 (navigator.language)
• 屏幕分辨率 (screen.width × screen.height)
• 操作系统平台 (navigator.platform)
• 时区 (Intl.DateTimeFormat().resolvedOptions().timeZone)
• 插件 ID 和版本号
• 申请时间戳

这些信息仅在您点击"提交申请"时收集，仅用于管理员识别和审批您的 Token 申请。正常使用时不会收集。

4. 页面截图

本插件使用 chrome.tabs.captureVisibleTab 截取当前浏览器标签页的可见区域为 JPEG 图片。该截图：

• 仅在远程控制功能正在运行时截取
• 实时通过 WebSocket 传输到您自行部署的中继服务器
• 仅用于在遥控端设备上显示预览
• 不会被插件持久化存储
• 不会发送到任何第三方服务

5. WebSocket 通信

在远程控制会话期间，本插件与您的中继服务器保持 WebSocket 长连接。所有通过此连接传输的数据如上文第 2 节所述。连接在您停止远程控制或关闭浏览器标签页时终止。

不收集的数据

本插件不会收集、存储或传输：

• 个人身份信息（姓名、邮箱、电话号码）
• 浏览历史或受支持 PPT 平台之外的 URL
• IP 地址或地理位置数据
• PPT 平台的 Cookie 或身份认证令牌
• 插件 UI 之外的键盘输入或表单数据
• 任何用于广告、分析或追踪目的的数据

数据保留

• 本地存储：数据保留在浏览器中，直到您清除扩展数据或卸载插件
• 中继服务器：数据保留取决于您的中继服务器配置。默认情况下，备注存储在服务器本地 SQLite 数据库中。房间在 2 小时无活动后自动清理

第三方服务

本插件不会集成或传输数据到任何第三方分析、广告或追踪服务。所有通信仅限于插件与您自行部署的中继服务器之间。

安全性

• 所有数据在插件和中继服务器之间传输。建议为您的中继服务器配置 HTTPS 以加密传输中的数据
• API Token 存储在 Chrome 本地存储中，通过 HTTP 头部传输（Authorization: Bearer <token>）
• 截图实时传输，插件不作持久化存储

您的控制权

您对自己的数据拥有完全控制权：

• 更改中继服务器：随时在插件配置标签页修改服务器地址
• 停止远程控制：点击"结束远程控制"立即终止会话
• 清除 Token：在 Token 标签页使用"清除本地 Token"按钮
• 卸载插件：从 Chrome 移除插件将删除所有本地存储的数据

政策变更

我们可能会不时更新本隐私政策。变更将在本页面公布并更新日期。

联系方式

如有关于本隐私政策的问题，请在项目的 GitHub 仓库提交 Issue。