To export the displayed isotopic pattern to an image, use-> .
Available formats are SVG, EPS, PS, PDF, and the formats with write support in GdkPixbuf.
To choose a format, you can use an appropriate extension in the file name, or explicitly select a format in the combo box. With the first method, if GChemCalc does not recognize an extension, the exported file will be a SVG file. GChemCalc will add an extension to the file name if needed.
You might change the default width and height of the exported image using the appropriate entries.