(PECL ps >= 1.1.0)
ps_set_border_color — Sets color of border for annotations
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 color of the rectangle's border line.
psdoc
Resource identifier of the postscript file as returned by ps_new().
red
The red component of the border color.
green
The green component of the border color.
blue
The blue component of the border color.