About this tool
Detect AcroForm fields and fill them in your browser. Text, checkboxes, radio, dropdowns.
Fill PDF forms
EditDetect AcroForm fields and fill them in your browser. Text, checkboxes, radio, dropdowns.
Drop a PDF here
Process ≤ 50.0 MB
Privacy by architecture
All processing happens in your browser. Your PDF never uploads to our servers. No account required, no usage limits.
How it works
- 1Choose a PDF — never leaves your device
- 2Configure the tool to your needs
- 3Save the result to your downloads
Frequently asked questions
Is this form fill tool free?
Yes, completely free with no usage limits.
Which field types are supported?
Text fields, checkboxes, radio groups, dropdowns, and option lists. Signature and push-button fields are skipped.
What if the PDF has no form fields?
Many PDFs are flat (not interactive). The tool will warn you — for those, use the Sign tool or print and scan.
Can I lock the form so values cannot be changed?
Yes. Enable "Flatten form" before saving — the values become permanent text and the fields disappear.
Will my PDF be uploaded to a server?
No. The form filling happens in your browser with pdf-lib.