Module: Pdfrb::Document::PdfA

Included in:
Pdfrb::Document
Defined in:
lib/pdfrb/document/pdf_a.rb

Overview

PDF/A production helper (ISO 19005-2). Installs the three things a conforming file must carry that a generic document does not:

* a GTS_PDFA1 OutputIntent with an embedded sRGB ICC
profile (DeviceGray/RGB rendering legitimacy),
* an XMP metadata stream carrying the pdfaid identification
(part + conformance) on the Catalog,
* a document Title so the XMP synchronises on write.

Fonts must be EMBEDDED separately (fonts.add with a file path); the standard-14 names alone do not satisfy 6.2.11.4.1.

Constant Summary collapse

SRGB_IDENTIFIER = 
"sRGB IEC61966-2.1"
SRGB_REGISTRY = 
"http://www.color.org"

Instance Method Summary collapse

Instance Method Details

#enable_pdf_a!(part: 2, conformance: "B") ⇒ Object

Parameters:

  • part (Integer) (defaults to: 2) —

    1, 2, 3, or 4.

  • conformance (String) (defaults to: "B") —

    "B" (basic), "A", or "U".



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# File 'lib/pdfrb/document/pdf_a.rb', line 23

def enable_pdf_a!(part: 2, conformance: "B")
  self.version = part == 4 ? "2.0" : "1.7"

  srgb_output_intent
  metadata[:Title] ||= "Untitled"
  packet = xmp || Pdfrb::XMP::Packet.new
  packet.pdfa_id = { part: part, conformance: conformance }
  @xmp = packet
  @pdfa_part = part
  @pdfa_conformance = conformance
  self
end

#pdfa_conformance ⇒ Object 



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# File 'lib/pdfrb/document/pdf_a.rb', line 37

def pdfa_conformance; @pdfa_conformance; end

#pdfa_part ⇒ Object 



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# File 'lib/pdfrb/document/pdf_a.rb', line 36

def pdfa_part; @pdfa_part; end