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Contents
# -*- 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.
########################################################
module CombinePDF
# Limited Unicode Support (font dependent)!
#
# The PDFWriter class is a subclass of Hash and represents a PDF Page object.
#
# Writing on this Page is done using the textbox function.
#
# Setting the page dimensions can be either at the new or using the mediabox method. New pages default to size A4, which is: [0, 0, 595.3, 841.9].
#
# Once the Page is completed (the last text box was added),
# we can insert the page to a CombinePDF object.
#
# We can either insert the PDFWriter as a new page:
# pdf = CombinePDF.new
# new_page = CombinePDF.create_page # => PDFWriter object
# new_page.textbox "some text"
# pdf << new_page
# pdf.save "file_with_new_page.pdf"
#
# Or we can use the Page_Methods methods to write an overlay (stamp / watermark) over existing pages:
# pdf = CombinePDF.new
# new_page = PDFWriter.new "some_file.pdf"
# pdf.pages.each {|page| page.textbox "Draft", opacity: 0.4 }
# pdf.save "stamped_file.pdf"
class PDFWriter < Hash
# create a new PDFWriter object.
#
# mediabox:: the PDF page size in PDF points. defaults to [0, 0, 612.0, 792.0] (US Letter)
def initialize(mediabox = [0, 0, 612.0, 792.0])
# indirect_reference_id, :indirect_generation_number
@contents = ""
@base_font_name = "Writer" + SecureRandom.hex(7) + "PDF"
self[:Type] = :Page
self[:indirect_reference_id] = 0
self[:Resources] = {}
self[:Contents] = { is_reference_only: true , referenced_object: {indirect_reference_id: 0, raw_stream_content: @contents} }
self[:MediaBox] = mediabox
end
# includes the PDF Page_Methods module, including all page methods (textbox etc').
include Page_Methods
end
end
Version data entries
16 entries across 16 versions & 1 rubygems