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PDF Form Builder — Add Fillable Fields to Any PDF

Place real text fields and checkboxes onto a PDF so other people can fill it in.

To turn a flat PDF into a form other people can fill in, drag text fields and checkboxes onto the page where each answer belongs and give them names. The result is a real AcroForm — the same interactive form Acrobat produces — so it can be completed in any PDF reader, in a browser, or with the Fill PDF Forms tool here. Field appearances are generated as the form is built, which is the step most tools skip and the reason a filled form so often saves blank.

Runs in your browser
Produces
A real AcroForm that any PDF reader can fill in
Fields
Text fields and checkboxes, each with its own name
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Why do field names matter?

The name is how anything reading the completed form identifies the answer — your own script, a database import, or the Fill PDF Forms tool. Two fields sharing a name means one answer overwrites the other, so duplicates are rejected rather than silently accepted.

Should I lock the fields?

Not on the form you send out — flattening turns the fields into fixed page content and nobody can fill it in. Locking belongs at the other end, once the form comes back completed.

Can I add dropdowns or radio buttons?

Not yet — text fields and checkboxes cover the large majority of forms. Dropdowns and radio groups need an option list per field, which is a different editing surface rather than another drag.

How to use the create a fillable pdf form

  1. 1Select your pdf file — the file stays on your device and is never uploaded.
  2. 2Enter or paste your fields.
  3. 3Turn "Lock the fields" on or off as needed.
  4. 4Set the quality.
  5. 5Press Run, then download the result when it is ready.

Embed this tool

Put the working create a fillable pdf form on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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