Class: HexaPDF::CLI::Optimize

Inherits:
Command
  • Object
show all
Defined in:
lib/hexapdf/cli/optimize.rb

Overview

Optimizes the size of a PDF file.

Instance Method Summary collapse

Methods included from Command::Extensions

#help, #help_banner

Constructor Details

#initialize ⇒ Optimize

:nodoc:



45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
 
# File 'lib/hexapdf/cli/optimize.rb', line 45

def initialize #:nodoc:
  super('optimize', takes_commands: false)
  short_desc("Optimize the size of a PDF file")
  long_desc(<<~EOF)
    This command uses several optimization strategies to reduce the file size of the PDF file.

    By default, all strategies except page compression are used since page compression may
    take a very long time without much benefit.
  EOF

  @password = nil
  @out_options.compact = true
  @out_options.xref_streams = :generate
  @out_options.object_streams = :generate
  @out_options.streams = :compress
  @out_options.optimize_fonts = true

  options.on("--password PASSWORD", "-p", String,
             "The password for decryption. Use - for reading from standard input.") do |pwd|
    @password = (pwd == '-' ? read_password : pwd)
  end

  options.separator("")
  options.separator("Optimization options")
  define_optimization_options
end

Instance Method Details

#execute(in_file, out_file) ⇒ Object

:nodoc:



72
73
74
75
76
77
78
 
# File 'lib/hexapdf/cli/optimize.rb', line 72

def execute(in_file, out_file) #:nodoc:
  maybe_raise_on_existing_file(out_file)
  with_document(in_file, password: @password, out_file: out_file) do |doc|
    optimize_page_tree(doc)
    apply_optimization_options(doc)
  end
end