Your PDF can stay in the browser tab

A “local-first” PDF workflow means the pixels you tweak — skew, noise, watermarks — are computed on your machine. That is a different risk story from services that require an upload queue before you ever see a download link.

What changes when nothing is uploaded

When conversion runs in JavaScript on your device, the sensitive payload does not traverse a vendor’s object storage as part of the core effect. Network calls may still happen for scripts, fonts, or analytics, but the document bytes for the scan-style pass are not inherently part of that hop.

Who tends to care first

• Teams without a standardized DPA for every free utility they try.
• Individuals sending medical, financial, or identity-adjacent paperwork.
• Anyone on guest Wi‑Fi who prefers not to add another upload surface.

Still read the privacy page

Local processing is not magic anonymity. CDNs, ads, and extensions exist. Use ScannedLook alongside your own policy: clear the tab on shared PCs, and treat the tool as part of your broader hygiene, not a substitute for legal advice.

Next read: A short checklist for client-only PDF tools