Privacy Policy

Last updated: September 17, 2026.

File processing

Current WUS3 processing tools perform checks, compression, and conversion inside your browser on your device. These tool paths do not send the contents or names of files you select to a WUS3 server or to the measurement service.

Local storage for large files

When the large-PDF processing path is used, WUS3 may use site-private browser storage. The working file or result is stored locally through the Origin Private File System (OPFS), while operation metadata and resume checkpoints are stored in IndexedDB. Local Storage may be used for simple operational hints or preferences, not to store the file contents in this path.

Resume and deletion

WUS3 limits temporary durable large-file storage to one interrupted operation for resume. Cancelled operations are removed locally, and starting a new large-file operation discards the older saved operation. An operation remains eligible for resume for 6 hours after its last update. After expiry, WUS3 rejects loading it and attempts to remove its data when the processing tool opens, the page becomes active again, or the next cleanup runs. The site cannot guarantee deletion at an exact wall-clock time while the browser is closed or suspended. You can also delete all WUS3 local files manually from the processing tool.

Usage data

WUS3 uses aggregated, anonymous traffic measurement to understand the most-used pages, broad referral sources, and general device information, without cookies for that measurement. More detailed optional measurement runs only after you consent. Tool events are limited to the tool type, start, completion, error, download, and page path; they do not include file bytes or filenames, file contents, entered text, or file size. You can continue using WUS3 without enabling optional measurement.

Advertising and external services

File-processing tool pages do not load optional measurement, advertising, or external-font scripts, even with saved measurement consent. A processing page may temporarily keep safe, general event names in the browser session and send them after the visitor moves to a regular page if measurement consent is already saved. Other pages use optional measurement after consent and may display advertising and external services. This reduces scripts on processing pages; it does not isolate their storage from other pages on the same origin.

Protecting your information

WUS3 tools do not ask for passwords, verification codes, or login credentials for accounts you hold with other organizations. Always use the organization’s official channels when entering account credentials.

Contact

For privacy or service-related questions, please use our contact page.