Insert Logo

Does just that. The size, position and transparency are set as percentages, so that these values can be applied to varying image sizes during batch processing.

Transparent
Ignores the background color of the logo. This color can be set (for visible logos) by double-clicking with the left mouse button in the preview image or using the color selection dropdown box B.

Soft (in conjunction with Transparent)
Softens the logo edges.

Date or Date + Time
Instead of the logo, you can display the date using the Exif data  (if present, otherwise the file date is used). Also you can use free text.

Name or Path + Name
Adds either the file name alone or the complete path including the file name to the image.

The dropdown boxes F and B are used to set the foreground and background colors for an inserted date, text etc. You can also set the text font as desired.