LaTeX.org

Stefan, the first simple attempt to obtain a LyX pdf/a file had success. Adobe Reader says the file is a pdf/a file.
I don not use any option, simply I added:
\usepackage {pdfx} in LyX file preamble.
I'll try other experiments, as create the file <my_document_name>.xmpdata, when I will be free from ...

Stefan, thank you very much.
I'll try your suggestion and post my results.
Best regards and bye, see you soon

Is it possible to export a LyX document in pdf/A format and how to do it?
Otherwise what can I do to obtain a pdf/A document?

Thanks,
Roberto

I update my LyX 2.2.0 to 2.2.1 version on my pc under windows 10, 32 bit.
Latex distribution is MikTeX 2.9.
When I try to run LyX 2.2.1 an error occur:

C:\Program Files\LyX2.2\bin\VCRUNTIME140.dll can not be utilized under Windows or it contains an error. Error code: 0xc000035a.

How to solve this ...