Are there no newer recommendations for generating a "camera ready" pdf from plain TeX?

The following are some over twenty year old instructions for creating a 
pdf from plain TeX for print on demand systems.  These instructions do 
seem to work with pdfTeX (but not luaTeX).

Are there no newer recommendations for generating a "camera ready" pdf 
from plain TeX?


     %
     \edef\pdfdate{%
       \the\year
       \ifnum \month < 10 0\the\month \else \the\month \fi
       \ifnum \day < 10 0\the\day \else \the\day \fi}
     %
     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     % Configuring pdfTeX
     %--------------------------------------------------
     %
     \pdfpagewidth=8truein
     \pdfpageheight=10truein
     %
     \pdfinfo{
        /Title    (The Title and Subtitle)
        /Author   (Author Lastname)
        /Subject  (Subject)
        /Keywords (some key words)
        %not needed: /ModDate  (D:\pdfdate)
        %not needed: /Trapped/False
        /GTS_PDFXVersion (PDF/X-1a:2003)
     }
     \pdfpageattr{/MediaBox [0 0 576 720]
                  /TrimBox  [0 0 576 720]}
       %%not needed:  %/CropBox [] /BleedBox [] %%% not necessary to set
       %%not needed:  \pdfoptionpdfminorversion=3 % depends on pdftex 
version
     \pdfcatalog{
       /OutputIntents [ <<
       /Info (U.S. Web Coated (SWOP) v2)
       /Type /OutputIntent
       /S /GTS_PDFX
       /OutputCondition (U.S. Web Coated (SWOP) v2)
       /OutputConditionIdentifier (CGATS TR 001)
       /RegistryName (http://www.color.org/)
       >> ]
     }
     %
     %pdftex.cfg:  page_height 10 true in
     %pdftex.cfg:  %pdf_minorversion 4
     %pdftex.cfg:  %pk_resolution 600
     %
     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%