Validate PDF/A documents in Xamarin

Validate a PDF/A document for compliance and check its conformance level. Supports all PDF/A versions and conformance levels: PDF/A-1A, PDF/A-1B, PDF/A-2A, PDF/A-2B, PDF/A-2U, PDF/A-3A, PDF/A-3B, PDF/A-3U, PDF/A-4, PDF/A-4E, PDF/A-4F.

PDFACompliance pdf_a = new PDFACompliance(false, filename, null, PDFACompliance.Conformance.e_Level2B, null, 10, false);
int err_cnt = pdf_a.GetErrorCount();
if (err_cnt == 0)
{
	Console.WriteLine("{0}: OK.", filename);
}

Convert PDF to PDF/A
Full sample code which illustrates how to validate existing PDF documents for PDF/A compliance as well as to convert generic PDF documents to PDF/A format.

PDFACompliance class is used to validate PDF documents for PDF/A (ISO 19005:1/2/3/4) compliance or to convert existing PDF files to PDF/A compliant documents.

The conversion option analyzes the content of existing PDF files and performs a sequence of modifications in order to produce a PDF/A compliant document. Features that are not suitable for long-term archiving (such as encryption, obsolete compression schemes, missing fonts, or device-dependent color) are replaced with their PDF/A compliant equivalents. Because the conversion process applies only necessary changes to the source file, the information loss is minimal. Also, because the converter provides a detailed report for each change, it is simple to inspect changes and to determine whether the conversion loss is acceptable.

The validation option can be used to quickly determine whether a PDF file fully complies with the PDF/A specification according to the international standard ISO 19005:1/2/3/4. For files that are not compliant, the validation option can be used to produce a detailed report of compliance violations as well as a list of relevant error objects.

Key Functions: