PD4ML v4.1.0 introduces a new API method, pd4ml.writePDF(OutputStream, PdfSpec), which allows you to specify the required PDF standard compliance level.

Available options:

• PDF1.4 – PdfSpec.PDF_1_4 – Acrobat 5
• PDF1.5 – PdfSpec.PDF_1_5 – Acrobat 6
• PDF1.6 – PdfSpec.PDF_1_6 – Acrobat 7
• PDF1.7 – PdfSpec.PDF_1_7 – Acrobat 8 / ISO 3200-1
• PDF1.7ext1 – PdfSpec.PDF_1_7_1
• PDF1.7ext2 – PdfSpec.PDF_1_7_2
• PDF1.7ext3 – PdfSpec.PDF_1_7_3 – Acrobat 9
• PDF1.7ext4 – PdfSpec.PDF_1_7_4
• PDF1.7ext5 – PdfSpec.PDF_1_7_5
• PDF1.7ext6 – PdfSpec.PDF_1_7_6
• PDF1.7ext7 – PdfSpec.PDF_1_7_7
• PDF1.7ext8 – PdfSpec.PDF_1_7_8 – Acrobat X
• PDF1.7ext9 – PdfSpec.PDF_1_7_9
• PDF1.7ext10 – PdfSpec.PDF_1_7_10
• PDF1.7ext11 – PdfSpec.PDF_1_7_11 – Acrobat XI
• PDF2.0 – PdfSpec.PDF_2_0

The PdfSpec parameter can be combined with one of PDF/A modifiers

• PDF/A-1a:2005 – PdfSpec.PDFA_1A
• PDF/A-1b:2005 – PdfSpec.PDFA_1B
• PDF/A-2a – PdfSpec.PDFA_2A
• PDF/A-2b – PdfSpec.PDFA_2B
• PDF/A-2u – PdfSpec.PDFA_2U
• PDF/A-3a – PdfSpec.PDFA_3A
• PDF/A-3b – PdfSpec.PDFA_3B
• PDF/A-3u – PdfSpec.PDFA_3U
• PDF/A-4 – PdfSpec.PDFA_4 – requires PDF2.0
• PDF/A-4e – PdfSpec.PDFA_4E – requires PDF2.0

The combining can be done as follows:

    pd4ml.writePDF(os, PdfSpec.PDFA_3B); // implicitly adds PDF1.7 conformance
    pd4ml.writePDF(os, PdfSpec.PDF_1_7_8.combine(PdfSpec.PDFA_3B));

And also PDF or PDF/A-a can be combined with PDF/UA

• PDF/UA-1 – PdfSpec.PDFUA_1
• PDF/UA-2 – PdfSpec.PDFUA_2 – requires PDF2.0

Examples:

    pd4ml.writePDF(os, PdfSpec.PDFUA_1); // implicitly adds PDF1.7 conformance
    pd4ml.writePDF(os, PdfSpec.PDF_1_7_8.combine(PdfSpec.PDFUA_1));
    pd4ml.writePDF(os, PdfSpec.PDF_1_7_11.combine(PdfSpec.PDFA_3A).combine(PdfSpec.PDFUA_1));

There are also several predefined constants that combine PDF standards as required by XML invoicing specs:

• ZUGFeRD – PdfSpec.ZUGFeRD, which is PdfSpec.PDF_1_7.combine(PdfSpec.PDFA_3B)
• ZUGFeRD (tagged) – PdfSpec.ZUGFeRD_a, which is PdfSpec.PDF_1_7.combine(PdfSpec.PDFA_3A)
• Factur-X – PdfSpec.FacturX, which is PdfSpec.PDF_1_7.combine(PdfSpec.PDFA_3B)
• Factur-X (tagged) – PdfSpec.FacturX_a, which is PdfSpec.PDF_1_7.combine(PdfSpec.PDFA_3A)

 

NOTE: Not all the standards can be combined with each other. PdfSpec.combine() throws PdfSpecViolationException and PdfSpecUnsupportedException in incompatibility cases.