Automation library · Documents and files

Fill any PDF from JSON data with JustFill and Gemini

Started by someone submitting a form. It calls services over plain HTTP rather than through connectors. 20 steps: a working afternoon to understand properly.

Medium

20 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
0Services by connector: it calls them over plain HTTP

The flow

Starts it 1Logic 10Service 9

The steps in the order they run, from what starts it.

  1. 1On form submissionForm triggerStarts it
  2. 2ConfigSetLogic
  3. 3Mint upload slotHttp RequestService
  4. 4Prepare uploadCodeLogic
  5. 5Upload PDFHttp RequestService
  6. 6Open PDFHttp RequestService
  7. 7Prepare page previewsCodeLogic
  8. 8Render previewHttp RequestService
  9. 9Attach page previewCodeLogic
  10. 10Build mapping requestCodeLogic
  11. 11Mapping vision modelHttp RequestService
  12. 12Validate mappingCodeLogic
  13. 13Render filled previewHttp RequestService
  14. 14Attach filled previewCodeLogic
  15. 15Build validation requestCodeLogic
  16. 16Review vision modelHttp RequestService
  17. 17Require approvalCodeLogic
  18. 18Fill PDFHttp RequestService
  19. 19ResultCodeLogic
  20. 20Redirect to filled PDFFormService

How it's built

Starts on
Someone submitting a form
Steps
20
Size
Medium: a working afternoon
Connects to
Nothing by connector; it calls services over plain HTTP
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone submitting a form.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 20 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 20 steps before you point it at anything that matters.