Created
July 11, 2012 18:51
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PDF Concatenation with Prawn - Slow Example
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require 'rubygems' | |
require 'benchmark' | |
require 'bundler' | |
Bundler.setup | |
require 'prawn' | |
require 'ruby-debug' | |
sources = ['ML091590492.pdf', 'file1.pdf', 'file2.pdf'] | |
document = Prawn::Document.new(:template => sources.first) | |
sources[1..(sources.length - 1)].each do |file| | |
document.go_to_page(document.page_count) | |
object_store = Prawn::Core::ObjectStore.new(:template => file) | |
num_pages = object_store.page_count | |
(1..num_pages).each do |page_number| | |
document.start_new_page(:template => file, :template_page => page_number) | |
end | |
end | |
document.render_file('out.pdf') |
it's a bit faster if you load the first document as a template
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btw this is really slow.