PdfTextAlignment API in JavaScript PDF API control

// Load an existing PDF document
let document: PdfDocument = new PdfDocument(data, password);
// Access text box field
let field: PdfTextBoxField = document.form.fieldAt(0) as PdfTextBoxField;
// Sets the text alignment of form field as center
field.textAlignment = PdfTextAlignment.center;
// Save the document
document.save('output.pdf');
// Destroy the document
document.destroy();