find position of beginning of text on pdf itextsharp code example

Example: itext 7 get text in words

private List<SimpleTextWithRectangle> textWithRectangleList = new ArrayList<>();

private void renderText(TextRenderInfo renderInfo) {
    if (renderInfo.getText().trim().length() == 0)
        return;
    LineSegment ascent = renderInfo.getAscentLine();
    LineSegment descent = renderInfo.getDescentLine();

    float initX = descent.getStartPoint().get(0);
    float initY = descent.getStartPoint().get(1);
    float endX = ascent.getEndPoint().get(0);
    float endY = ascent.getEndPoint().get(1);

    Rectangle rectangle = new Rectangle(initX, initY, endX - initX, endY - initY);

    SimpleTextWithRectangle textWithRectangle = new SimpleTextWithRectangle(rectangle, renderInfo.getText());
    textWithRectangleList.add(textWithRectangle);
}

public List<SimpleTextWithRectangle> getResultantTextWithPosition() {
    return textWithRectangleList;
}

@Override
public void eventOccurred(IEventData data, EventType type) {
    renderText((TextRenderInfo) data);
}

@Override
public Set<EventType> getSupportedEvents() {
    return Collections.unmodifiableSet(new LinkedHashSet<>(Collections.singletonList(EventType.RENDER_TEXT)));
}