iTextSharp Textfield setting the font to Bold

Question

For a textfield object, I would like to change the style to bold. I have already created the arial font since it is not a default font for the BaseFont object. Apparently the Te

Answer 1

I'm not sure if this will work in all cases, but I created this helper method for adding a form field. It abstracts away calculating upper right X and Y values and also deals with making the font bold.

It hides some of the nasty implementation details from the caller.

Credit to @jon-skeet for helping me solving the bold font problem!

        private static void AddFormField(PdfWriter pdfWriter,
            float lowerLeftX,
            float lowerLeftY,
            float width,
            float height,
            string fieldName,
            Font font)
        {
            var upperRightX = lowerLeftX + width;
            var upperRightY = lowerLeftY - height;
            var fontName = font.Style == Font.BOLD ? $"{font.Familyname}-Bold" : font.Familyname;
            var baseFont = BaseFont.CreateFont(fontName, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
            var box = new Rectangle(lowerLeftX, lowerLeftY, upperRightX, upperRightY);

            var field = new TextField(pdfWriter, box, fieldName)
            {
                Font = baseFont,
                FontSize = font.Size
            };

            pdfWriter.AddAnnotation(field.GetTextField());
        }

Answer 2

Have you tried specifying arialbd.ttf as the font name? I think that will give better results anyway, as the bold font will have been tuned.

(I'm not sure why you can't just specify a Font for a TextField, admittedly...)