are you apply source codes?
and are you suren PDFVPage class has method as:
protected void CreateBmp()
{
if( m_cache == null || m_cache.m_status != 1 || m_bmp != null ) return;
float scale = 1;
if( m_cache.m_dibw * m_cache.m_dibh > (1000000) )
scale = FloatMath.sqrt( (float)(1000000) / (m_cache.m_dibw * m_cache.m_dibh) );
int w = (int)(m_cache.m_dibw * scale);
int h = (int)(m_cache.m_dibh * scale);
try
{
m_bmp = Bitmap.createBitmap(w, h, Config.ARGB_8888);
int bmp = Global.lockBitmap(m_bmp);
Global.drawToBmp2(bmp, m_cache.m_dib, 0, 0, w, h);
Global.unlockBitmap(m_bmp, bmp);
}
catch(Exception e)
{
}
m_cache.Clear();
m_cache = null;
if( m_sel != null )
{
m_sel.Clear();
m_sel = null;
}
}