Privacy Statement

Last updated: September 2026

What PDFfer Convert does

PDFfer Convert is a browser-based tool for converting files between formats — documents, images, audio, video, e-books and markup. All processing happens on the server using open-source tools (LibreOffice, FFmpeg, ImageMagick, Calibre, Pandoc). Your files are never stored permanently and are never shared with anyone.

Your uploaded files

• Files you upload are stored temporarily on the server solely to carry out the requested conversion.
• When you leave or refresh the page, your files and their converted results are deleted immediately.
• As a fallback, anything left behind is automatically deleted after 30 minutes.
• No copies are kept. No backups are made. Once deleted, the files are gone.

What we do not collect

• We do not collect personal data.
• We do not use cookies for tracking or analytics.
• We do not share any data with third parties.
• We do not show ads.
• We do not require an account or login.

Theme preference

The only data stored in your browser is your light/dark theme preference, saved via localStorage. This never leaves your device.

Security

All connections are encrypted via HTTPS. The application is served with strict security headers (Content Security Policy, HSTS, X-Frame-Options, etc.). Conversions run with per-job time limits in an isolated worker process.

Contact

Questions? Reach out via davasc.nl.