Impression 3.3

Adds high-quality watermarks to your photos.
The original files are not altered. The watermarked photos are automatically imported in iPhoto as copies of the original image.
Multiple photos can be watermarked with one click.
Existing PSD (Photoshop) or PNG images can be used as watermarks.
Watermarks can also be created from a RTF text file. The font and color from the file is used for generating the watermark.
The Impression plugin can place watermarks horizontally and vertically.
Controls are available for adjusting the transparency, position, margin and size.