I recently needed to apply a watermark/copyright message to 100’s of images site-wide, so I added a new feature to the Image Sizer plugin; the extra code works by merging a .png overlay into the cached images. This means you can use drop-shadows, logos, transparency etc. - works a treat.
I know a few other people have been asking about this. Attached are sample images showing how it could be used.
Update: Also attached is the modified Image Sizer 2.5.6.05 plugin for EE1.6.x.
Usage examples:
{exp:imgsizer:size src="{image}" width="900" overlay_file="/img/watermark.png" overlay_size="50"}
{exp:imgsizer:size src="{image}" width="900" overlay_file="/img/watermark.png" overlay_position="0"}
Packet Tide owns and develops ExpressionEngine. © Packet Tide, All Rights Reserved.