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amoeba/crop-marks.rb

Created July 31, 2009 18:42
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crop-marks.rb
require 'prawn'
Prawn::Document.generate('crop-marks.pdf') do
spacing = 12
margin = 100
canvas do
# topleft corner
stroke_line [bounds.left + spacing, bounds.top - margin],
[bounds.left + margin - spacing, bounds.top - margin]
stroke_line [bounds.left + margin, bounds.top - spacing],
[bounds.left + margin, bounds.top - margin + spacing]
# topright corner
stroke_line [bounds.right - spacing, bounds.top - margin],
[bounds.right - margin + spacing, bounds.top - margin]
stroke_line [bounds.right - margin, bounds.top - spacing],
[bounds.right - margin, bounds.top - margin + spacing]
# bottomleft corner
stroke_line [bounds.left + spacing, bounds.bottom + margin],
[bounds.left + margin - spacing, bounds.bottom + margin]
stroke_line [bounds.left + margin, bounds.bottom + spacing],
[bounds.left + margin, bounds.bottom + margin - spacing]
# bottomright corner
stroke_line [bounds.right + spacing, bounds.bottom + margin],
[bounds.right - margin + spacing, bounds.bottom + margin]
stroke_line [bounds.right - margin, bounds.bottom + spacing],
[bounds.right - margin, bounds.bottom + margin - spacing]
end
end
@qipcreative
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Bottom right corner should be:

bottomright corner

  pdf.stroke_line [pdf.bounds.right - spacing, pdf.bounds.bottom + margin], 
              [pdf.bounds.right - margin + spacing, pdf.bounds.bottom + margin]
  pdf.stroke_line [pdf.bounds.right - margin, pdf.bounds.bottom + spacing], 
              [pdf.bounds.right - margin, pdf.bounds.bottom + margin - spacing]

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