Hello, I am trying to scale an image by 50 %. I tried with the following code but it does not work:         cairo_save(cr);         cairo_set_source_surface(cr, local_surf, target_x, target_y);         // these 2 lines are used for scaling         cairo_pattern_set_matrix (cairo_get_source(board->cr), &matrix);         cairo_pattern_set_filter(cairo_get_source(board->cr), CAIRO_FILTER_BEST);         cairo_paint(cr);         cairo_restore(cr); Another attempt is like this:         cairo_matrix_t matrix;         cairo_matrix_init_scale (&matrix, 0.5, 0.5);         cairo_pattern_t* pattern = cairo_pattern_create_for_surface(my_surface);         cairo_pattern_set_matrix (pattern, &matrix);         cairo_pattern_set_filter(pattern, CAIRO_FILTER_BEST);         cairo_set_source(cr , pattern);         cairo_rectangle(cr, x, y, w, h);         cairo_fill(cr); But it also does not work. What is the correct way to do this ? Thanks. Regards, Kelvin