These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.68 s (backtrack: 0/20).

[ebuild     U  ] app-crypt/gpgme-2.2.0:1/45.0::gentoo [2.0.1-r1:1/45.0::gentoo] USE="-common-lisp -static-libs -test -verify-sig" 1389 KiB
[ebuild  N     ] dev-cpp/gpgmepp-2.2.0:0/7::gentoo  USE="-test -verify-sig" 122 KiB
[ebuild  N     ] app-text/poppler-26.09.0:0/164::gentoo  USE="cairo cxx gpg harfbuzz jpeg jpeg2k lcms png tiff utils -boost -cjk -curl -debug -doc -introspection -nss -qt6 -test -verify-sig" 1994 KiB
[ebuild  N     ] app-misc/cfiles-1.8::gentoo  233 KiB

Total: 4 packages (1 upgrade, 3 new), Size of downloads: 3737 KiB