вот начал пробовать но nconverter от XnView не хочет работать
<?xml version="1.0" encoding="UTF-8"?><XnView_script version="1.0" name="_foto_300">
<Watermark filename="C:\\\\to_fb\\\\avante_logo_01.jpg" opacity="30" no_alpha="true" position="0" delta_x="0" delta_y="0" perc="30" size="3"/>
<Resize mode="1" width="300" height="0" unit="0" ratio="true" orientation="false" enlarge="0" resample="7" gamma_correct="false"/>
<Clean_metadata flags="63"/>
<Output folder="C:/Temp/__ob_nconvert" filename="{Filename}_300" case="1" format="JPEG">
<Options overwrite="0" orgDate="false" keepMeta="false" keepICC="false" keepFolder="true" delOrg="false" multipage="false" allPages="false" openExplorer="false" openBrowser="false" clearItems="false"/>
<JPEG quality="70" progressive="false" optimizeHuffman="false" rebuildThumb="true" orgQuality="false" DCTMethod="0" subSampling="0" smoothFactor="0"/>
</Output>
</XnView_script>