Recogito Tutorial: Uploading Images - pelagios/pelagios.github.io GitHub Wiki
Recogito accepts the three major image formats: .jpg, .tif, .png. Once uploaded, the images can be zoomed in and out using the “+” and “-” icons on the interface or your mouse/trackpad. However, Recogito cannot improve the quality of the source file, and low quality images will pixelate when enlarged. If you are uploading a number of images together, you are advised to check that they do not exceed your personal storage space (200 MB). For IIIF manifests see the Uploading modes.