Hello
@Pim van den Berg,
What exactly are you trying to do with the PDFs? Do you know which specific release of the PDF/A standard (i.e. PDF/A-1, PDF/A-2, PDF/A-3, or PDF/A-4)? If it's PDF/A-1, you'll probably be fine using most of the PDF related connectors on the DX. If it's any of the later releases of PDF/A you may encounter issues with any of the connectors that use opensource PDF libraries like iTextSharp or PdfSharp. In that case, you're best bet is to probably work with the PDF Toolkit connector as it's based on Adobe's PDF SDK. The downside to it is that it uses Adobe's Document Cloud. They charge a small fee for the service (there is a developer trial available that includes something like 2,000 free pages I believe).
If all you need to do is have the Digital Worker upload the PDF file to a destination then the PDF specification doesn't matter. You can simply use the
Utility - HTTP VBO's
Http Request Multipart action to do that.
Cheers,
Eric