(PECL ps >= 1.1.0)
Sets color of border for annotations
bool ps_set_border_color ( resource $psdoc, float $red, float $green, float $blue )
Links added with one of the functions ps_add_weblink(), ps_add_pdflink(), etc. will be displayed with a surounded rectangle when the postscript document is converted to pdf and viewed in a pdf viewer. This rectangle is not visible in the postscript document. This function sets the col