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Privacy Policy

Effective Date: May 1, 2026 · Last Updated: May 26, 2026

PDFdukan ("we," "us," or "our") operates the CamMaster website at pdfdukan.com. This Privacy Policy explains how we handle your information when you use our services.

1. The Core Principle: We Never See Your Files

Every document processing operation on PDFdukan — scanning, cropping, converting, merging, splitting, compressing, and OCR — is performed entirely inside your web browser using JavaScript. Your files are processed locally on your own device and are never transmitted to our servers. We do not have access to your documents, images, or any file content.

2. Information We Do Not Collect

The contents of any files you process (PDFs, images, documents)
Any personal information required to use basic features
Browsing behavior across other websites
Device identifiers or fingerprints

3. Information That May Be Stored Locally

The following information is stored only in your browser's localStorage on your own device — not on any server:

Theme preference (dark/light mode) — key: cm_theme
Recent documents list — document names and metadata only (no file content) — key: cm_recent
Application settings — export format, quality preference — key: cm_settings
Read notification IDs — which system notifications you've seen — key: cm_read_notifs

This data never leaves your device. You can clear it at any time via your browser's settings or via your browser's privacy settings.

4. Google Sign-In & Google Drive Integration (Optional)

CamMaster offers optional Google Sign-In to save documents to your Google Drive and sync settings across devices. If you choose to sign in:

We receive your Google account name and email address for display purposes only
We request the drive.file scope — this only allows PDFdukan to manage files it creates in your Drive
We do not access, read, modify, or delete any existing files in your Google Drive
You may revoke access at any time via Google Account Permissions

4a. Google Drive Folder

When you sign in with Google, PDFdukan automatically creates a folder named "PDFdukan — CamMaster Files" in the root of your Google Drive. All files you choose to save from PDFdukan tools are stored inside this folder. We only access files within this folder — we cannot read, modify, or delete any other files in your Google Drive. You can delete this folder at any time from Google Drive to remove all PDFdukan-created files. The drive.file scope limits our access strictly to files created by PDFdukan.

5. Analytics & Third-Party Services

We may use Google Analytics to collect aggregate, anonymized usage statistics (page views, tool usage counts) with IP anonymization enabled. This data cannot be used to identify individuals.

We serve advertisements via Google AdSense. Google may use cookies to serve ads based on your prior visits to our site or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to PDFdukan and/or other sites on the Internet.

Opt out of personalized advertising:

Visit Google Ads Settings to manage your Google ad preferences.
Visit aboutads.info to opt out from participating ad networks.
Visit networkadvertising.org for additional opt-out options.

You will still see non-personalized ads if you opt out. See Google's Advertising Privacy Policy for full details.

6. Cookies

We use only essential cookies required for the service to function. See our full Cookies Policy.

7. Children's Privacy

PDFdukan does not knowingly collect information from children under the age of 13. If you believe a child has provided us with personal information, please contact us immediately.

8. Changes to This Policy

We may update this Privacy Policy. Material changes will be announced via the in-app notification system. Continued use after changes constitutes acceptance of the updated policy.

9. Contact

For privacy-related questions or data requests:
For questions, please use our Contact Form.