Using the layout menu you can choose the format of the generated image - landscape (900 x 700), portrait (700 x 900) or square (800 x 800). Another option is the background molecule coloring - if the color is not supplied within the data this may be based on the element composition of the molecule or the random pastel color.
The number of molecules submitted must be between 20 (the Molecule Cloud for less molecules does not look very nice) and 150. This upper limit is introduced to save computer resources also for other users.
You may also check the example data inputs [Example data] and [Example data with colors].
Details about the Molecule Cloud methodology are described in our publication in J. Cheminformatics. You are free to use the images generated by this tool in your publications or place them in your web site. You are required, however, to cite our publication and the reference to this web tool.