Cookie Policy
Last updated: October 6, 2026
Cookies are small data files that websites leave in your browser. We keep their use to a minimum.
No non-essential cookies by default
WrenPDF does not need cookies to work. Your preferences are kept in localStorage, not cookies. They are never sent to a server and never used for advertising.
| Name | Type | Purpose | Duration |
|---|---|---|---|
| fl-theme | localStorage | Light or dark theme | Until you clear it |
| fl-locale | localStorage | Language you picked | Until you clear it |
| fl-pref-favorites | localStorage | Your favourite tools | Until you clear it |
| fl-pref-history | localStorage | Recently used tools | Until you clear it |
| fl-pref-processed | localStorage | Count of files processed on this device | Until you clear it |
| fl-install-dismissed | localStorage | Remembers that you closed the "Install app" prompt | Until you clear it |
| fl-consent | localStorage | Your ad cookie choice (only when ads are on) | Until you clear it |
Third-party cookies
If an ad network such as Google AdSense is enabled, Google and its partners may use cookies to serve and measure ads. These are used only while ads are on and after you consent. Until you choose, no ad request is sent; with "Essential only" you see non-personalised ads. You can change your choice any time from the "Cookie preferences" link at the bottom of the page, or turn off personalised ads in Google Ad Settings.
Managing cookies
You can delete or block cookies and site data in your browser settings at any time. Only your theme and favourites reset; the tools keep working.