Last updated: January 2026
VisoPDF operates on a strict zero-knowledge, client-side processing architecture. When you select, merge, convert, or edit a PDF on VisoPDF, the document data is loaded solely into your local browser memory. No document content is uploaded to any VisoPDF server or third-party cloud service.
We do not collect names, email addresses, IP addresses tied to document sessions, or document contents. We use privacy-preserving, anonymous analytics to track aggregate pageviews and tool popularity.
Your browser may store essential preference settings (such as dark/light theme and language selection) in browser localStorage. This data remains on your device and is never shared.
If you have any questions about our privacy commitment, please email us at privacy@visopdf.com.