| Source PDF URL | Provide the URL to the source PDF document, or a filetoken:// link from PDF.co Built-In Files Storage. If you use another cloud service such as Google Drive or Dropbox ensure the link is publicly accessible. | Yes |
| Id | Assign an ID to the form field. | Yes |
| X Co-ordinate | Specify the X coordinate for form field placement. Use the PDF.co tool to find X and Y coordinates. | Yes |
| Y Co-ordinate | Specify the Y coordinate. Assistance for coordinates can be found using the PDF.co tool. | Yes |
| Type | Define the field type, such as TextField or Checkbox. | Yes |
| Initial Value | Set an initial value for the field. For checkboxes, use values like X, true, or 1 to mark them as checked. | No |
| Size | Define the field size, overriding initial settings. | No |
| Pages | Enter the page numbers (or ranges) from where the form field should be added. Leave empty to process all pages. The first page is 0. Example: 0,2-5,7-. | No |