see changelog

.gitignore

@@ -1,32 +1,14 @@
-
-.yardoc/proxy_types
-
-.yardoc/checksums
-
-.yardoc/object_types
-
-.yardoc/objects/root.dat
-
-*.gem
-*.rbc
-.bundle
-.config
-.yardoc
-Gemfile.lock
-InstalledFiles
-_yardoc
-coverage
-doc/
-lib/bundler/man
-pkg
-rdoc
-spec/reports
-test/tmp
-test/version_tmp
-tmp
+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
 *.bundle
 *.so
 *.o
 *.a
 mkmf.log
-

CHANGELOG.md

@@ -0,0 +1,13 @@
+#Change Log
+
+***
+
+Change log v.0.1.6
+
+**Fix**: added Mutex to font library (which was shared by all PDFWriter objects) - now fonts are thread safe (PDF objects are NOT thread safe by design).
+
+**update**: updated license to MIT.
+
+**known issues**: encrypted PDF files can sometimes silently fail (producing empty pages) - this is because on an attempted decrypt. more work should be done to support encrypted PDF files. please feel fee to help.
+
+I use this version on production, where I have control over the PDF files I use. It is beter then system calls to pdftk (which can cause all threads in ruby to hold, effectively causing my web app to hang).

Gemfile

@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in combine_pdf.gemspec
+gemspec

LICENSE.txt

@@ -0,0 +1,22 @@
+Copyright (c) 2014 Myst
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -106,7 +106,7 @@ Credit to his wonderful is given here. Please respect his license and copyright.
 
 License
 =======
-GPLv3
+MIT
 
 
 

Rakefile

@@ -0,0 +1,2 @@
+require "bundler/gem_tasks"
+

combine_pdf.gemspec

@@ -1,20 +1,25 @@
-# -*- encoding : utf-8 -*-
-########################################################
-## Thoughts from reading the ISO 32000-1:2008
-## this file is part of the CombinePDF library and the code
-## is subject to the same license.
-########################################################
-Gem::Specification.new do |s|
-	s.name = 'combine_pdf'
-	s.version = '0.1.6'
-	s.date = Time.now.strftime "%Y-%m-%d"
-	s.add_runtime_dependency 'ruby-rc4', '>= 0.1.5'
-	s.required_ruby_version = '>= 1.9.2'
-	s.summary = "Combine, stamp and watermark PDF files in pure Ruby."
-	s.description = "A nifty gem, in pure Ruby, to parse PDF files and combine (merge) them with other PDF files, number the pages, watermark them or stamp them, create tables or basic text objects etc` (all using the PDF file format)."
-	s.authors = ["Boaz Segev", "Masters of the open source community"]
-	s.email = '[email protected]'
-	s.files = Dir["{lib}/**/*.rb"] #["lib/combine_pdf.rb", "lib/combine_pdf/combine_pdf_pdf.rb", "lib/combine_pdf/combine_pdf_parser.rb" , "lib/combine_pdf/combine_pdf_decrypt.rb" , "lib/combine_pdf/combine_pdf_filter.rb" ]
-	s.homepage = 'https://github.com/boazsegev/combine_pdf'
-	s.license = 'MIT'
+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'combine_pdf/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "combine_pdf"
+  spec.version       = CombinePdf::VERSION
+  spec.authors       = ["Boaz Segev"]
+  spec.email         = ["We try, we fail, we do, we are"]
+  spec.summary       = %q{Combine, stamp and watermark PDF files in pure Ruby.}
+  spec.description   = %q{A nifty gem, in pure Ruby, to parse PDF files and combine (merge) them with other PDF files, number the pages, watermark them or stamp them, create tables or basic text objects etc` (all using the PDF file format).}
+  spec.homepage      = "https://github.com/boazsegev/combine_pdf"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0")
+  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
+  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
+  spec.require_paths = ["lib"]
+
+  spec.add_runtime_dependency 'ruby-rc4', '>= 0.1.5'
+
+  spec.add_development_dependency "bundler", "~> 1.7"
+  spec.add_development_dependency "rake", "~> 10.0"
 end

lib/combine_pdf.rb

@@ -1,5 +1,4 @@
 # -*- encoding : utf-8 -*-
-# use under GPLv3 terms only
 
 require 'zlib'
 require 'securerandom'
@@ -16,6 +15,7 @@
 load "combine_pdf/combine_pdf_filter.rb"
 load "combine_pdf/combine_pdf_parser.rb"
 load "combine_pdf/combine_pdf_pdf.rb"
+require "combine_pdf/version"
 
 
 # This is a pure ruby library to combine/merge, stmap/overlay and number PDF files - as well as to create tables (ment for indexing combined files).
@@ -101,7 +101,7 @@
 #
 # == License
 #
-# GPLv3
+# MIT
 module CombinePDF
 	module_function
 
@@ -288,7 +288,7 @@ def register_font_from_pdf_object font_name, font_object
 
 #########################################################
 # this file is part of the CombinePDF library and the code
-# is subject to the same license (GPLv3).
+# is subject to the same license (MIT).
 #########################################################
 # PDF object types cross reference:
 # Indirect objects, references, dictionaries and streams are Hash

lib/combine_pdf/combine_pdf_fonts.rb

@@ -103,7 +103,9 @@ def register_font(font_name, font_metrics, font_pdf_object, font_cmap = nil)
 			new_font.cmap = font_cmap
 			new_font[:is_reference_only] = true
 			new_font[:referenced_object] = font_pdf_object
-			FONTS_LIBRARY[new_font.name] = new_font
+			FONTS_LIBRARY_MUTEX.synchronize do
+				FONTS_LIBRARY[new_font.name] = new_font
+			end
 			new_font
 		end
 
@@ -342,6 +344,10 @@ def register_font_from_pdf_object font_name, font_object
 		# the Hash listing all the fonts.
 		FONTS_LIBRARY = {}
 
+		# the Mutex for library write access
+
+		FONTS_LIBRARY_MUTEX = Mutex.new
+
 
 		# this method parses a cmap file using it's data stream
 		# FIXME:

lib/combine_pdf/combine_pdf_operations.rb

@@ -392,7 +392,7 @@ def _format_hash_to_pdf(object)
 
 #########################################################
 # this file is part of the CombinePDF library and the code
-# is subject to the same license (GPLv3).
+# is subject to the same license (MIT).
 #########################################################
 # PDF object types cross reference:
 # Indirect objects, references, dictionaries and streams are Hash

lib/combine_pdf/version.rb

@@ -0,0 +1,3 @@
+module CombinePdf
+  VERSION = "0.1.6"
+end