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Cookies & Local Storage Policy

Effective Date: May 1, 2026 · Last Updated: August 24, 2026

Browser storage illustration with a cookie and local data markers — Cookies and local storage support preferences, consent and selected site features.

This policy explains how PDFdukan ("we," "us") uses cookies and browser local storage on the CamMaster website (pdfdukan.com).

1. What Are Cookies?

Cookies are small values a website or third party stores in your browser. PDFdukan also uses localStorage and sessionStorage. Local storage is not automatically sent with every web request, but values can be read by site scripts and some are used when you choose connected features.

2. Local Storage We Use

Common local keys include the following. Additional short-lived security, language, profile and Google Drive connection values may be created when you use those features.

Key	Purpose	Type	Expires
`cm_theme`	Stores your dark/light theme preference	Essential	Until cleared by you
`cm_recent`	List of recently processed document names and metadata (no file content)	Functional	Until cleared by you
`cm_settings`	User-selected application settings (quality, export format, scan filter)	Functional	Until cleared by you
`cm_user`	Local account display state, which can include a name or email when you sign in	Authentication	Until you sign out
`cm_read_notifs`	IDs of notification messages you have already read	Functional	Until cleared by you

3. Session Storage

We use sessionStorage with the key cm_pending_files to hold file data temporarily when the home page hands a selected document to a tool. The destination tool reads and removes it; closing the tab also clears session storage. Do not use shared devices for sensitive files without clearing site data.

4. Third-Party Cookies

Google Analytics

Google Analytics 4 is currently loaded to measure page visits and usage, with IP anonymization configured. It may use cookies or similar identifiers under Google's terms. You can use the Google Analytics Opt-out Browser Add-on or browser controls. The current “Got it” banner records acknowledgement; it is not a granular consent manager and should not be described as one.

Advertising

The interface has reserved advertising spaces, but the reviewed source does not confirm active personalized AdSense delivery. If advertising cookies are enabled later, this page and the site's consent controls must be updated first. Google advertising preferences can be managed at Google Ad Settings.

5. How to Control Cookies

You can control and delete cookies and localStorage through your browser settings:

Chrome: Settings → Privacy & Security → Clear Browsing Data
Firefox: Preferences → Privacy & Security → Cookies and Site Data
Safari: Preferences → Privacy → Manage Website Data
Edge: Settings → Cookies and Site Permissions

You can also clear PDFdukan's local preferences via your browser's privacy settings.

6. Contact

For cookie-related questions, use our Contact Form.