void bgpdf_create_page_with_bg(int pageno, struct BgPdfPage *bgpg);
void bgpdf_update_bg(int pageno, struct BgPdfPage *bgpg);
void bgpdf_create_page_with_bg(int pageno, struct BgPdfPage *bgpg);
void bgpdf_update_bg(int pageno, struct BgPdfPage *bgpg);