Hi tel2,
Check out this: http://search.cpan.org/~lds/GD-2.56/lib/GD.pm
Using GD one can create empty canvas and then draw what you want and save in many different formats when ready.
Using GD even you can insert a small marker image to a given position into a big picture.
$myImage = new GD::Image(100,100);
... various drawing stuff ...
$srcImage = new GD::Image(50,50);
... more drawing stuff ...
# copy a 25x25 pixel region from $srcImage to
# the rectangle starting at (10,10) in $myImage
$myImage->copy($srcImage,10,10,0,0,25,25);
Regards
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