The different conformance levels reflect the quality of the archived document and depend on the input material and the documents purpose. PDF/A versions and levels are given one after another.
PDF/A-1 is the first archiving standard based on PDF version 1.4. All resources must be embedded within the PDF/A document itself.
PDF/A-2 is based on PDF 1.7. It allows JPEG2000 compression, transparent elements, PDF layers and more.
PDF/A-3 is available since October 2012. It allows to embed any file format desired.
Level a (accessible) meets all requirements for the standard.
Level b (basic) guaranteed that the content of the document can be unambiguously reproduced.
Level u (unicode) specifies that all text can be mapped to standard Unicode character codes.
'Declaration<ComVisibleAttribute(True)> Public Enum PdfValidationConformance Inherits System.Enum
[ComVisible(true)] public enum PdfValidationConformance : System.Enum
public enum PdfValidationConformance = class(System.Enum)
ComVisibleAttribute() public enum PdfValidationConformance extends System.Enum
[ComVisible(true)] __value public enum PdfValidationConformance : public System.Enum
[ComVisible(true)] public enum class PdfValidationConformance : public System.Enum
| Member | Value | Description |
|---|---|---|
| PDF_A_1a | 0 | The PDF conformance level is PDF/A-1a. |
| PDF_A_1b | 1 | The PDF conformance level is PDF/A-1b. |
| PDF_A_2a | 2 | The PDF conformance level is PDF/A-2a. |
| PDF_A_2b | 4 | The PDF conformance level is PDF/A-2b. |
| PDF_A_2u | 3 | The PDF conformance level is PDF/A-2u. |
| PDF_A_3a | 5 | The PDF conformance level is PDF/A-3a. |
| PDF_A_3b | 7 | The PDF conformance level is PDF/A-3b. |
| PDF_A_3u | 6 | The PDF conformance level is PDF/A-3u. |
| PDF_A_4 | 8 | The PDF conformance level is PDF/A-4. |
| PDF_A_4e | 9 | The PDF conformance level is PDF/A-4e. |
| PDF_A_4f | 10 | The PDF conformance level is PDF/A-4f. |
System.Object
System.ValueType
System.Enum
GdPicture14.PdfValidationConformance