import { FileViewerSettings } from '../types/fileViewerSettings.types';
export default function useFileViewerSettings(): {
    fileViewerSettings: Readonly<import('vue').Ref<{
        readonly fitMode: "width" | "viewport";
    }, {
        readonly fitMode: "width" | "viewport";
    }>>;
    updateFileViewerSettings: (partialSettings: Partial<FileViewerSettings>) => void;
};