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Home » Newsletter » December 2015

Last month, a new property named TextRise was added to the PDFTextFormatter of PDFOne .NET. PDFTextFormatter is used with the basic PDFDocument.WriteText(string) method. The TextRise can be used to write text with superscript or subscript styles.

Here is the code for it.

// Create a font instance
PDFFont fntConsolas = new PDFFont("Courier New", FontStyle.Underline, 15);

// Create a text formatter instance
PDFTextFormatter tf = new PDFTextFormatter();

// Create a new document and add a page to it
PDFDocument doc = new PDFDocument(PDFOne_License.KEY);
PDFPage pg = new PDFPage(System.Drawing.Printing.PaperKind.A4, 1, 1, 1, 1);
doc.AddPage(pg);

// Write text in regular style
tf.TextRise = 0f;
doc.WriteText("Dettol® = C8H9ClO or Dettol", fntConsolas, tf);

// Write superscript text
tf.TextRise = 4f;
doc.WriteText("®", fntConsolas, tf);

tf.TextRise = 0f;
doc.WriteText(" = C", fntConsolas, tf);

// Write subscript textxt
tf.TextRise = -3f;
doc.WriteText("8", fntConsolas, tf);

// reset
tf.TextRise = 0;
doc.WriteText("H", fntConsolas, tf);

// subscript again
tf.TextRise = -3f;
doc.WriteText("9", fntConsolas, tf);

// res... all right, you get the idea!
tf.TextRise = 0;
doc.WriteText("ClO", fntConsolas, tf);

doc.Save(@"test.pdf");
doc.Close();

Hopefully, you will be using the TextRise as part of some text-processing routine, not hand-coding each bit like this.