Last Updated: June 13, 2026
Effective Date: June 13, 2026
Welcome to PDF Toolbox / PDF工具箱 (hereinafter referred to as “the App”). The App is provided by Changsha Weiyuan E-Commerce Co., Ltd. (hereinafter referred to as “we”, “us”, or “our”).
We highly value the privacy and security of your personal information and files. This Privacy Policy explains how we collect, use, store, protect, and process your information, as well as your related rights.
Before using the App, please read and understand this Privacy Policy carefully. If you do not agree with any part of this Policy, please stop using the App and related services.
This Privacy Policy applies to the PDF Toolbox / PDF工具箱 App and its related services.
This Privacy Policy does not apply to:
The App provides PDF and document processing tools, including but not limited to:
All PDF processing is completed locally on your device.
To provide file processing, record saving, file opening, troubleshooting, and other features, the App may collect and use the following information within the minimum necessary scope. We do not collect any information unrelated to the services provided.
| Type | Information | Purpose | Collection Method | Required |
|---|---|---|---|---|
| User-selected files | PDF, images, Word, PPT, Excel, etc. | File processing, conversion, preview, saving, opening, sharing | Selected by user via system file picker | Required when using file processing |
| File records | File name, type, size, URI, source function, save time | Display and reopen saved files | Generated locally | Required for file history |
| Images | User-selected images, generated images from PDF conversion | Image-to-PDF, PDF-to-image, saving images | User selection or local generation | Required for image features |
| Clipboard data | Text copied after PDF text extraction | “Copy all” function | Written after user action | Optional |
| Network request data | API request metadata | Network requests and troubleshooting | Generated during network use | Required when online features used |
| App version | App version number | Display and troubleshooting | Read locally | Optional |
| System version | Android version | Compatibility handling | Read locally | Required for compatibility |
| Cache data | Temporary files, preview cache | Processing and preview | Generated locally | Required for processing |
The current version of the App does not integrate advertising SDKs, analytics SDKs, push notification SDKs, or OAID SDKs, and does not actively access the following identifiers:
We do not use the above identifiers for advertising tracking, user profiling, or cross-app identification.
If third-party SDKs are introduced in the future, they may collect device identifiers such as OAID, Android ID, GAID, device model, system version, network type, or IP address, depending on their functionality. We will disclose such details and obtain your consent when required.
To provide core functions such as file processing, saving, opening, and sharing, the App may request the following permissions:
| Permission | Purpose | Effect if Denied |
|---|---|---|
| Network access | API requests and troubleshooting | Online features unavailable |
| File access (picker) | Select files for processing | Cannot select files |
| File storage | Save processed results | Cannot save files |
| Photo library access | Save PDF-to-image results | Cannot save images |
| Clipboard write | Copy extracted text | Copy feature unavailable |
| Cache access | Temporary processing | May affect performance |
| Open file capability | Open files via system apps | Cannot open files directly |
| Share capability | Share files via system | Sharing unavailable |
The App does not request the following permissions:
If future features require such permissions, we will clearly explain the purpose and update this Privacy Policy.
Most file processing features are performed locally on your device, including:
Temporary files and cache may be generated during processing. You may clear them via Settings → Clear Cache.
Clearing cache will NOT delete files you have explicitly saved.
To allow reopening saved files, the App stores the following records locally:
These records remain on your device only.
When using PDF-to-image features, generated images may be saved to your system gallery or image directory. Placement may vary depending on your device.
When using PDF text extraction and selecting “Copy All”, the extracted text is written to the system clipboard. We do not read your clipboard content.
The App may generate temporary files and cache during processing. These can be cleared via Settings → Clear Cache.
Clearing cache does not affect saved files.
We may store the following data locally on your device:
We take reasonable measures to protect your data, including:
However, no system is completely secure. You should take care when processing sensitive files.
The current version does not include advertising, analytics, push notification, login, or device identifier SDKs.
Main dependencies include:
These are used only for core functionality