Upload a fillable PDF. Every form field it contains is listed automatically — type into text fields, tick checkboxes and choose dropdown values. Optionally tick 'Flatten' to bake your answers permanently into the page, then download the completed PDF.
Text fields, checkboxes, radio button groups, dropdowns and option lists. Digital signature fields cannot be signed here — use the PDF Watermark tool to place a signature image instead.
Flattening draws your answers directly onto the page and removes the interactive fields. The values can no longer be edited, which is useful when sending a final copy.
The document has no interactive AcroForm fields — it is either a flat document or a scan. A form you can only type into in Acrobat's 'Fill & Sign' mode is not a real form field.
No. The PDF is parsed and rewritten entirely in your browser. Nothing is sent to a server.