Some WordPress themes allow to use small article images. For example the Yoko theme uses 140 pixel wide images. You can create them with this script.

cthumb.desktop

[Desktop Entry]
ServiceTypes=KonqPopupMenu/Plugin,image/*
Type=Service
Actions=cthumb;
X-KDE-ServiceTypes=KonqPopupMenu/Plugin
MimeType=application/octet-stream;
X-KDE-Submenu=Blogging
 
[Desktop Action cthumb]
Name=Create 140 Pixel wide thumb
Icon=
Exec=/usr/local/bin/cthumb.sh %f

cthumb.sh

#!/bin/bash
 
_file="${1}"
_newwidth=140
_filename="${_file##*/}"
_dirname=$(dirname "${_file}")
 
convert "${_file}" -resize "${_newwidth}x" "${_dirname}/${_newwidth}_${_filename}"