PDF/X-3:2002
Outdated information
http://www.pdfx.info redirects to pdfreport.com - there for supporting errors the email given is info AT pdfx.info - but for several report sent there, the mailer reported delivery problems.
There is also the GWG website, but they too have outdated information as confirmed by the person that replied to a report sent to support AT gwg.org.
So official or semi-official publicly available pages are not well maintained.
2002
Apache OpenOffice 2010
- http://forum.openoffice.org/en/forum/viewtopic.php?f=6&t=27238&start=0
- it is suggested to save as PDF/A which results in font embedding.
- i.e. there seems to be no support and additionally,
Ghostscript: