How to use

length

method

in

com.itextpdf.text.pdf.PdfString

/**
 * Provides detail useful if a listener needs access to the position of each individual glyph in the text render operation
 * @return  A list of {@link TextRenderInfo} objects that represent each glyph used in the draw operation. The next effect is if there was a separate Tj opertion for each character in the rendered string
 * @since   5.3.3
 */
public List<TextRenderInfo> getCharacterRenderInfos(){
  List<TextRenderInfo> rslt = new ArrayList<TextRenderInfo>(string.length());
  PdfString[] strings = splitString(string);
  float totalWidth = 0;
  for (int i = 0; i < strings.length; i++) {
    float[] widthAndWordSpacing = getWidthAndWordSpacing(strings[i], true);
    TextRenderInfo subInfo = new TextRenderInfo(this, strings[i], totalWidth);
    rslt.add(subInfo);
    totalWidth += (widthAndWordSpacing[0] * gs.fontSize + gs.characterSpacing + widthAndWordSpacing[1]) * gs.horizontalScaling;
  }
  for (TextRenderInfo tri : rslt)
    tri.getUnscaledWidth();
  return rslt;
}

/**
 * Provides detail useful if a listener needs access to the position of each individual glyph in the text render operation
 * @return  A list of {@link TextRenderInfo} objects that represent each glyph used in the draw operation. The next effect is if there was a separate Tj opertion for each character in the rendered string
 * @since   5.3.3
 */
public List<TextRenderInfo> getCharacterRenderInfos(){
  List<TextRenderInfo> rslt = new ArrayList<TextRenderInfo>(string.length());
  PdfString[] strings = splitString(string);
  float totalWidth = 0;
  for (int i = 0; i < strings.length; i++) {
    float[] widthAndWordSpacing = getWidthAndWordSpacing(strings[i], true);
    TextRenderInfo subInfo = new TextRenderInfo(this, strings[i], totalWidth);
    rslt.add(subInfo);
    totalWidth += (widthAndWordSpacing[0] * gs.fontSize + gs.characterSpacing + widthAndWordSpacing[1]) * gs.horizontalScaling;
  }
  for (TextRenderInfo tri : rslt)
    tri.getUnscaledWidth();
  return rslt;
}