DocViewer Privacy Policy
Summary
• There is no sign-up, login, advertising or analytics. Raijin Labs does not collect or store your personal information and does not run servers that receive your documents.
• Opening and editing documents happens only on your device.
• Exception: when you run text recognition (OCR), images of the relevant pages are sent to Google Cloud Vision (section 2).
This policy explains how information is handled in the DocViewer app for Android (package name kr.docviewer, the "App") provided by Raijin Labs ("we"). The Korean version is the governing text; this English version is provided for convenience.
1. Information we collect
We do not collect personal information through the App. The App has no account or login, no advertising, and no analytics or crash-reporting SDK, and we do not operate a server that receives data from the App.
2. Text recognition (OCR) and image transfer
The "text recognition" feature reads the text in scanned PDFs or photos so it can be searched and copied. It uses the internet and runs only when you start it.
- When you tap "Recognize text", the photos you selected and the PDF pages that contain no text are rendered as images (JPEG) and sent to the Google Cloud Vision API provided by Google LLC, which returns the recognized text. PDF pages that already contain text are not sent.
- The images may contain whatever is written in your document. They are sent directly from your device to Google over HTTPS and do not pass through our servers.
- Each request includes information that identifies the App (package name and signing certificate). We do not include your name, account, contacts or device identifiers such as advertising IDs. As with any internet connection, Google can see the IP address the request comes from and basic connection details (a User-Agent containing the Android version and device model).
- Google's handling and retention of the images is governed by Google's policies. See Cloud Vision data usage and the Google Privacy Policy.
- If you do not want this, simply do not use text recognition. All other features work without the internet.
3. Information stored only on your device
For convenience, the App stores the following only on your device, in app-private storage. It is never sent to us, is excluded from device backups, and is deleted when you uninstall the App.
- Recent documents list: file name, size, format, last opened time and the access grant needed to reopen the file (you can remove entries in the App)
- Saved signatures you create with the PDF signing feature
- App settings (for example, large text)
4. Permissions
| Permission | Purpose |
|---|---|
| Internet | Used only by text recognition (OCR). The document rendering view is blocked from connecting to external addresses. |
The App does not request access to all of your storage. It reads only files you pick or send to it with "Open" or "Share" from another app. The App has no camera permission; "Scan document" uses the scanning screen provided by Google Play services, and scans are saved on your device.
5. Payments
If paid features are offered, they are sold through Google Play Billing. Google processes the payment; we never receive your card number or other payment details. The App may check on the device the purchase information provided by Google Play (which product was bought and its status) to unlock features.
6. Crash information
The App has no crash-reporting code of its own. If you enable "Usage & diagnostics" on your device, Google may provide us, through Google Play, with crash information aggregated in a form that does not identify you, under Google's policies.
7. Sharing with third parties
We do not share personal information with third parties. If you use the App's "Share" feature to send a document to another app, that app's policies apply from then on.
8. Children
The App does not collect personal information from anyone, including children.
9. Your rights
Because we hold no personal information about you, there is nothing for us to access, correct or delete on request. Information stored on your device can be removed in the App or by uninstalling it. Questions are welcome at the address below.
10. Contact
Raijin Labs — contact@raijinlabs.app
11. Changes
We will post changes on this page at least 7 days before they take effect, or 30 days before for significant changes that are unfavorable to users.