Your files stay with you.
Prontio processes images and PDFs directly in your browser.
What happens to your files
When you select a file, it is read in your device memory. Conversion and output creation happen locally. Prontio does not send file contents to a server or keep a document history.
Visit data
Our hosting provider, network provider and Google Analytics may process technical visit data such as IP address, requested page, date, browser, approximate traffic source and device type. This is different from selected file contents, which remain local.
Cookies and analytics
Google Analytics uses cookies and similar identifiers to help us understand aggregate site usage. We do not send the contents of files you process to Google Analytics. The site displays Adsterra banner ads, loaded through highrevenueformat.com and its partners in a separate frame. These services may process IP addresses, browser and device data, cookies and ad interactions. Prontio does not send selected file contents or names to the ad provider and does not store documents in the browser.
Updated · September 29, 2026