Creating valid PDF/A-4 with CapyPDF

PDF/A is a specific version of PDF designed for long term archival of electronic data. The idea being that PDF/A files are both self contained and fully specified, so they can be opened in the future without any loss of fidelity. Implementing PDF/A export is complicated by the fact that the specification is an ISO standard, which is not publicly available. Fortunately, there arePDF/A validators that will tell you if (and sometimes how) your generated PDF/A is invalid. So, given sufficient patience, you can keep throwing PDF files at the validator, fixing the issues reported and repeating this loop over and over until validation passes. Like this:blogger.googleusercontent.com/img/b/R29...ipbHRWI-IuLdrOazI/s1131/pdfa-valid.pngThis will be available in the next release of CapyPDF.