PdfFormFieldVisibility API in JavaScript PDF API control

// Load an existing PDF document
let document: PdfDocument = new PdfDocument(data, password);
// Access PDF form field
let field: PdfField = document.form.fieldAt(0);
// Sets the visibility of form field as hidden
field.visibility = PdfFormFieldVisibility.hidden;
// Save the document
document.save('output.pdf');
// Destroy the document
document.destroy();