TOPIC:

PDF_ERR err = 0;
    PDFDoc* document = [[PDFDoc alloc] init];
    err = [document open:templatePath :nil];
    if(err == err_ok)
    {
        int pagecount = [document pageCount];
        PDFPage* page;
        for(int i = 0; i < pagecount; i++)
        {
            page = [document page:i];
            [page objsStart];
            int annotcount = [page annotCount];
            PDFAnnot* ann;
            for(int k = 0; k < annotcount; k++)
            {
                ann = [page annotAtIndex:k];
                int c = [ann getStrokeColor];
                GALog(@"1) %x", c);
                [ann setStrokeColor:0x88888888];
                c = [ann getStrokeColor];
                GALog(@"2) %x", c);
            }
       }
}