Class: PDFValidator

Inherits:

Object

Object
PDFValidator

show all

Defined in:: lib/pdf_validator.rb

Overview

A crude validator for PDF files.

Class Method Summary collapse

.valid?(string) ⇒ Boolean

ISO 32000-1:2008 Section 7.5.2.

Class Method Details

.valid?(string) ⇒ `Boolean`

ISO 32000-1:2008 Section 7.5.2. states: “The first line of a PDF file shall be a header consisting of the 5 characters %PDF-”

This is not proof that the contents describe a PDF file, but it’s a good approximation.

Returns:

(Boolean)



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# File 'lib/pdf_validator.rb', line 11

def self.valid?(string)
  string.start_with?('%PDF-')
end