CTAN update: pdfx v.1.6.3: PDF/X and PDF/A support for pdfTeX, LuaTeX and XeTeX

From ver­sion 1.6, the pdfx pack­age has been adapted to changes in LaTeX made in 2018, in re­gards to in­put en­cod­ings, and to the newly es­tab­lished host­ing of Color Pro­files for TeXLive due to li­cens­ing con­straints. Other ad­di­tions in­clude sup­port for lan­guage tags for the PDF over­all and for in­di­vid­ual Me­ta­data field el­e­ments, as well as
ex­tend­ing the range of Me­ta­data fields sup­ported.

With ver­sion 1.6.3, ba­bel-sup­ported lan­guages us­ing UTF-8 en­cod­ing should now work prop­erly. More use­ful CMap files for text-ex­trac­tion are be­ing pro­duced from glyph names and use of com­bin­ing ac­cents, be­ing placed af­ter the base glyph. The new \pdfomitcharset prim­i­tive (added in 2019) is sup­ported, now en­abling valid PDF/A-2 and PDF/A-3 doc­u­ments to be pro­duced what­ever fonts are be­ing used.