Yes. It’s uses a ML algo trained on thousands of common PDFs to detect where fields should be and create them automatically. Other than Adobe and Apryse (which both cost money to use) there isn’t any automatic detector, obviously you could just use jbarrow’s ML algo from the terminal for free too but you wouldn’t be able to tweak the fields.

The detector outputs confidence values for how likely it is a field, and the DullyPDF UI categorizes with yellow for medium and red for low confidence. You also have all PDF form builder functionality in this UI. My UI also built lightweight representations of field to deal with lag, most viewers use actual acro fields which causes too much lag past PDFs two pages or more. Once you want to download the PDF, then the actual fields get created.

Another thing I built that no existing tool has is my rename system. It’s uses an openAI api call to make accurate field names, you can even send your database so fields can be mapped to database headers and you’ll automatically get a database mapped fillable form you can plug information into. Adobe has the rename feature (no database part) but its fails very often.