Is Fill PDF Forms private by default?

Frequently asked question for Fill PDF Forms.

Is Fill PDF Forms private by default?

Form analysis and filling run entirely in your browser. No form data is transmitted.

What this does not protect

  • XFA-based forms (common in older government PDFs) may not be detected by the field analyzer.
  • Some complex form layouts with nested field groups may display field names that look unfamiliar.
  • It cannot fix compromised devices, accounts, or unsafe sharing channels.