Annotate-On is an ergonomic tool for taking measurements of morphometric characters and for documentation by annotating digital duplicates of naturalist specimens and various photographic and sound sources.

Annotate-On is freely available to the scientific community to carry out research on mainly naturalist collections. It contains tools to easily and quickly perform morphological and morphometric analyzes on images: physical measurements (lengths , perimeters, surfaces, angles), marking and counting of points of interest, and descriptive annotations.

The images can come from various sources: in addition to the Recolnat infrastructure database, any online image URL, or even images from a hard drive, a camera, a microscope, etc. These image libraries can be categorized using the software's keyword management tool.

It's free download, however you must cite the tool in your scientific results by mentioning: RECOLNAT (ANR-11-INBS-0004) [Materials and methods or Acknowledgements part]