Last updated: July 3, 2026.
This Privacy Policy explains how PDF SealBox handles information when you use this website and its PDF stamping tools.
Overview
The website is designed for privacy-first PDF stamping workflows, including visible stamps, signature images, approval marks and cross-page seals.
Browser-based PDF processing
For common browser-based stamping workflows, PDF files and stamp images are designed to be processed locally in your browser whenever possible. We do not intentionally store uploaded PDF files for the browser stamping workflow.
Files and stamp images
PDFs and stamp images may be read by browser-side libraries to render previews and generate the stamped PDF. For highly confidential contracts, regulated documents or internal company files, consider offline desktop processing.
Technical data we may process
Like most websites, we may process standard technical information such as IP address, browser type, device information, timestamps, security logs, analytics events, referrer URLs and cookie-based signals.
Cookies and advertising
We may use cookies or similar technologies for basic site functionality, analytics, security, advertising measurement and third-party advertising where enabled.
Google AdSense and third-party advertising
If Google AdSense or similar advertising services are enabled, Google and other third-party vendors may use cookies, web beacons or similar technologies to serve ads based on a user’s prior visits to this website or other websites. Google’s use of advertising cookies enables it and its partners to serve ads based on visits to this site and/or other sites on the internet.
Users may opt out of personalized advertising by visiting Google Ads Settings. Users may also visit aboutads.info to learn about choices for some third-party vendors.
Data security
We use a privacy-first design and browser-based processing whenever practical, but no website can promise absolute security. Users should review their own document sensitivity and choose offline workflows when appropriate.
Policy updates
We may update this policy when site features, analytics, advertising or desktop workflows change. The Last updated date above reflects the latest version.
Contact
For privacy questions, contact qxuan2025@gmail.com.