Open a PDF editor that supports form creation
Import or open the PDF file
Select the form field tool
Add text fields where users should type
Add checkboxes for yes/no options
Add radio buttons for single-choice selections
Add dropdown menus for list selections
Add date fields if needed
Add signature fields if needed
Resize and align all fields properly
Set field properties such as name, required status, and formatting
Save the file as a fillable PDF
Test the PDF by opening it and entering sample data