Free Fillable PDF Form Builder
Add real, fillable text fields and checkboxes to any PDF at the exact spots you choose, directly in your browser.
Add a PDF to begin
Choose one PDF or drag and drop it here.
Maximum 200 MB · Up to 300 pagesChoose a page, then position a box where the fillable field should appear. Pages with a filled square already have fields queued.
How to make a PDF fillable
- Add a PDF file.
- Choose a page and position a box where a field should go.
- Name the field and choose text field or checkbox.
- Select Add field, repeat as needed, then create your fillable PDF.
How this works
Your browser creates genuine AcroForm fields — the same underlying technology used by professional PDF form software — and places them at the exact positions you choose. The result opens as a real fillable form in any standard PDF reader, not just an image overlay.
A note on scope
This creates new text fields and checkboxes at positions you place manually; it does not automatically detect where fields should go from the PDF's existing layout. To fill in or flatten fields that already exist in a PDF, use the PDF Editor instead.
Common use cases
- Turn a plain PDF into a fillable form with text fields and checkboxes
- Add a signature/initial checkbox and text fields to a contract template
- Create a simple fillable intake or application PDF without design software
Frequently asked questions
Is this PDF form builder free?
Yes. It is completely free, with no signup and no limits.
Is my PDF uploaded anywhere?
No. Everything happens entirely in your browser. Nothing is sent to Inqita or stored.
Will the fields work in any PDF reader?
Yes. They are real AcroForm fields, the standard PDF forms technology supported by Adobe Acrobat, browser PDF viewers, and most PDF apps.
Does this fill in existing form fields?
No, this tool adds new fields to a PDF. To fill in or flatten fields a PDF already has, use the PDF Editor tool instead.