About this tool
A fillable PDF form — the kind with click-into text boxes, checkboxes, radio buttons and dropdowns — stores each answer as a live "AcroForm" field layered on top of the page. Filling one out normally means opening it in a desktop PDF reader, or worse, printing it out, writing on it by hand, and scanning it back in. This tool reads the AcroForm fields directly out of the PDF you choose — their names, their types, their current values and, for checkboxes, radio groups and dropdowns, the exact set of choices available — and turns them into an ordinary web form: type into the text boxes, tick the checkboxes, pick from the dropdowns.
Once you are done, click "Fill & Download" and the tool writes your answers back into the PDF's own fields and hands you the result — entirely in your browser, nothing is ever uploaded anywhere. By default the fields stay live in the downloaded file, so you (or whoever you send it to) can still open it in a PDF reader and adjust an answer later. If you would rather lock the answers in permanently, so nobody can accidentally or intentionally change what you typed, check "Flatten after filling" first: the tool bakes every value into the page and removes the interactive fields before saving, the same way the companion PDF Form Flattener tool does. If a PDF has no fillable fields at all, the tool tells you so rather than pretending there is a form to fill in.
Frequently asked questions
What's the difference between this and the Form Flattener tool?
This tool is for putting VALUES into an empty (or partially filled) form for the first time; the Form Flattener tool is for making an ALREADY-filled form's values permanent so they can't be edited anymore. This tool has an optional "flatten after filling" checkbox that combines both steps in one pass, but you can also fill without flattening if you want the result to stay editable.
What if the PDF has no fillable fields at all?
The tool tells you upfront that no fillable fields were found, before you'd try to fill anything in. This usually means the PDF is a static document (like a scanned form or an image-based PDF) rather than an interactive AcroForm — this tool can only fill in fields that already exist as real interactive form elements in the file.