Available in LEADTOOLS Document and Medical Imaging toolkits.
AnnAutoResize example for C++ 4.0 and later
// This example will double the size of the bitmap and annotations m_Lead1.SetAnnAutoResize(TRUE); m_Lead1.Size( m_Lead1.GetBitmapWidth () * 2, m_Lead1.GetBitmapHeight() * 2, RESIZE_RESAMPLE);