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*Details: File format summary

    
 

 

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Details for: Acrobat PDF/A - Portable Document Format 1b
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Go to:  Summary  |  Documentation  |  Signatures |  Compression  |  Character encoding  |  Rights  |  Reference files   Properties  
 

Signatures
External signatures File extension: pdf
Internal signatures
Name Acrobat PDF/A 1b 1
Description Describes a signature for the PDF/A format with 1b conformance. Identifies the PDF header (1.3 through to 1.7) and byte sequence which equals - xmlns:pdfaid="http://www.aiim.org/pdfa/ns/id/">.<pdfaid:part>1</pdfaid:part>.<pdfaid:conformance>B</pdfaid:conformance>. Which is the PDF/A identification namespace within the PDF/A meta-data, and the 1b conformance. See ISO 19005-1:2005 and Technical Corrigendum 1 for further information.
Byte sequences
Position type Absolute from BOF
Offset 0
Maximum Offset 144
Byte order  
Value 255044462D312E[30:37]
Position type Variable
Byte order  
Value 786D6C6E733A7064666169643D(22|27)687474703A2F2F7777772E6169696D2E6F72672F706466612F6E732F6964*7064666169643A70617274(3D22|3D27|3E)31(22|27|3C2F7064666169643A706172743E){0-120}7064666169643A636F6E666F726D616E6365(3E|3D22|3D27)42(22|27|3C2F7064666169643A636F6E666F726D616E63653E)
Name Acrobat PDF/A 1b 2
Description Describes a signature for the PDF/A format with 1b conformance. Identifies the PDF header (1.3 through to 1.7) and byte sequence which equals - xmlns:pdfaid="http://www.aiim.org/pdfa/ns/id/">.<pdfaid:conformance>B</pdfaid:conformance>.<pdfaid:part>1</pdfaid:part>. Which is the PDF/A identification namespace within the PDF/A meta-data, and the 1b conformance. See ISO 19005-1:2005 and Technical Corrigendum 1 for further information.
Byte sequences
Position type Absolute from BOF
Offset 0
Maximum Offset 144
Byte order  
Value 255044462D312E[30:37]
Position type Variable
Byte order  
Value 786D6C6E733A7064666169643D(22|27)687474703A2F2F7777772E6169696D2E6F72672F706466612F6E732F6964*7064666169643A636F6E666F726D616E6365(3E|3D22|3D27)42(22|27|3C2F7064666169643A636F6E666F726D616E63653E){0-120}7064666169643A70617274(3D22|3D27|3E)31(22|27|3C2F7064666169643A706172743E)
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