class Asciidoctor::PDF::Optimizer

Constants

QUALITY_NAMES

Attributes

compatibility_level[R]
quality[R]

Public Class Methods

new(quality = 'default', compatibility_level = '1.4') click to toggle source
# File lib/asciidoctor/pdf/optimizer.rb, line 45
def initialize quality = 'default', compatibility_level = '1.4'
  @quality = QUALITY_NAMES[quality]
  @compatibility_level = compatibility_level
  if (gs_path = ::ENV['GS'])
    ::RGhost::Config::GS[:path] = gs_path
  end
end

Public Instance Methods

optimize_file(target) click to toggle source
# File lib/asciidoctor/pdf/optimizer.rb, line 53
def optimize_file target
  ::Dir::Tmpname.create ['asciidoctor-pdf-', '.pdf'] do |tmpfile|
    filename_o = ::Pathname.new target
    filename_tmp = ::Pathname.new tmpfile
    if (pdfmark = filename_o.sub_ext '.pdfmark').file?
      inputs = [target, pdfmark.to_s].join ::File::PATH_SEPARATOR
    else
      inputs = target
    end
    (::RGhost::Convert.new inputs).to :pdf,
        filename: filename_tmp.to_s,
        quality: @quality,
        d: { Printed: false, CannotEmbedFontPolicy: '/Warning', CompatibilityLevel: @compatibility_level }
    filename_o.binwrite filename_tmp.binread
  end
  nil
end