Last updated: January 2026 · Effective: January 2026
This Privacy Policy explains how Folium ("we", "us", or "our"), accessible at https://foliumio.netlify.app, collects, uses, and protects information when you visit our website and use our PDF tools. Please read this policy carefully. By using Folium, you agree to the practices described below.
Folium is an independent web project providing free, browser-based PDF processing tools. We are not a registered company but operate as an independent publisher. For all inquiries, you may contact us through the contact form on our website.
The most important privacy fact about Folium is this: your PDF files and documents are never uploaded to our servers. All file processing on Folium is performed entirely within your browser using client-side JavaScript. Your files are read from local memory, processed in your browser's JavaScript engine, and the resulting output is saved back to your local device.
We do not have a file upload server. We do not receive, store, process, transmit, or have access to any file you open in our tools. You can verify this by opening your browser's Developer Tools (F12), navigating to the Network tab, and running any of our tools — you will observe zero file upload requests.
When you visit Folium, our web hosting provider (Netlify) may automatically log certain technical information as part of standard server operations, including:
This information is collected by Netlify as part of their infrastructure and is subject to Netlify's Privacy Policy. We do not add additional server-side analytics beyond what Netlify's infrastructure logs.
We may use Google Analytics to understand how visitors use our site. Google Analytics uses cookies to collect anonymised data about page views, session duration, and user behaviour on the site. This data helps us improve the site experience. It does not include any information about the files you process with our tools.
You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.
If you contact us through our contact form, we collect the information you provide (name, email address, message). This information is used solely to respond to your inquiry and is not shared with third parties except as required by law.
Folium uses cookies in the following limited ways:
Most browsers allow you to control or disable cookies through browser settings. Note that disabling cookies may affect some website functionality.
The limited information we collect is used to:
We do not sell, rent, or trade your personal information to third parties. We do not use your information for profiling or automated decision-making.
Folium may display advertisements served by Google AdSense. Google uses cookies and data to serve ads based on your prior visits to Folium and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to our site and/or other sites on the Internet.
You may opt out of personalised advertising by visiting Google Ads Settings or by visiting aboutads.info.
For more information on how Google collects and uses data, see Google's Privacy & Terms.
We display advertising only on editorial and informational pages (such as blog posts and tool description pages), not in a way that interferes with tool functionality.
Folium uses the following third-party services, each with their own privacy policies:
Since we do not receive your files, there is no file data to retain or delete. Any contact form submissions are retained only as long as necessary to respond to your inquiry and are deleted thereafter. Server access logs retained by Netlify are subject to Netlify's retention policies.
Folium is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided personal information through our contact form, please contact us and we will delete it promptly.
Depending on your jurisdiction, you may have rights regarding your personal data, including:
To exercise any of these rights, please contact us through the contact page. We will respond within 30 days.
Folium's architecture provides strong inherent security for your files because they never leave your device. For information submitted through our contact form, we rely on HTTPS encryption for transmission and store minimal data. No security measure is perfect, but our model minimises the data we hold to minimise risk.
We may update this Privacy Policy from time to time. When we do, we will update the "Last updated" date at the top of this page. We encourage you to review this policy periodically. Continued use of Folium after changes constitutes acceptance of the updated policy.
If you have questions about this Privacy Policy or our privacy practices, please contact us through the contact form on our website. We will respond to privacy inquiries within 30 days.