Fill any PDF form.
One API call.
Turn a row from your workflow into a perfectly filled, flattened PDF — native AcroForm or scanned paper — in milliseconds. On your own infrastructure.
application_form.pdf
12 fields · 74 ms
Last name
Mustermann
First name
Erika
Street address
King Street 12
Insurance no.
K 123 456 789
Placement from the document itself — never guessed by a model.
Drops straight into
The node your paperwork was waiting for
One HTTP call between “new row” and “send email.”
FormFill handles the part that used to be somebody’s Tuesday afternoon — no clicking, no typing.
Trigger
New application arrives
Webhook · POST
Data
Master data looked up
Postgres · SELECT
FormFill
The form gets filled
HTTP Request → /v1/fill
12 fields · 74 msOutput
Filled PDF sent on
Send Email · attach
webhook → data → formfill → sent · nobody typed anything
Send the form
Upload the PDF or point us at a URL. Native AcroForm or a scanned paper form — both just work.
We register every field
Positions come from the document itself — widget rectangles, template boxes, OCR anchors. Never guessed.
Get the sheet back
A flattened PDF plus a JSON report: what was filled, from where, and how confidently — ready to route.
The whole integration
One request.
No SDK to babysit.
- PDF in, filled PDF out. Flattened and ready to send — or take the JSON report alone.
- Every field accounted for. Value, source, and a confidence score you can route reviews on.
- XFA refused loudly. A 422, never a silent wrong answer.
curl -s https://formfill.your-host.example/v1/fill \
-H "Authorization: Bearer $FORMFILL_KEY" \
-F "document=@application_form.pdf" \
-F 'values={"applicant_last_name":"Mustermann","applicant_first_name":"Erika"}'Fine print, large type
Asked & answered.
Honesty is a feature. If something doesn’t work, we say so — loudly, with a status code.
Does it handle scanned paper forms?
Yes — that’s the party trick. Register the blank once; every incoming scan is aligned against it with computer-vision registration and filled. Paper-only forms included.
What about XFA forms?
Refused loudly with a 422— never silently wrong. You’ll know exactly which documents need a different path.
Where does my data go?
Nowhere. FormFill runs on your own infrastructure — no third-party clouds, nothing leaves your network. Built for GDPR-grade workloads.
How does it plug into n8n or Make.com?
The dashboard writes the node for you — copy, paste, done. Anywhere else, it’s one curl.
Start filling forms in
five minutes.
Create an account, upload a form, and paste the node into n8n or Make. The first filled PDF is the demo.