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*Details: File format summary



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External signatures File extension: pdf
Internal signatures
Name Acrobat PDF/A-1a
Description Describes a signature for the PDF/A-1a form. Identifies the byte sequence which equals - xmlns:pdfaid=" which is the PDF/A identification namespace within the PDF/A meta-data, followed by <pdfaid:part>1<pdfaid:part> and <pdfaid:conformance>A<pdfaid:conformance>, which are the two mandatory elements and values for PDFA/1a. See ISO 19005-1:2005 and Technical Corrigendum 1 for further information.
Byte sequences
Position type Absolute from BOF
Offset 0
Byte order Little-endian
Value 255044462D312E[30:37]
Position type Variable
Byte order Little-endian
Value 786D6C6E733A7064666169643D(22|27)687474703A2F2F7777772E6169696D2E6F72672F706466612F6E732F6964*7064666169643A70617274(3D22|3D27|3E)31(22|27|3C2F7064666169643A706172743E){0-11}7064666169643A636F6E666F726D616E6365(3E|3D22|3D27)41(22|27|3C2F7064666169643A636F6E666F726D616E63653E)
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