import { PDFDocumentProxy } from 'pdfjs-dist/types/src/display/api';
import { PdfProperties, PDFSrc } from '../types';
type CMapSource = {
    url: string;
    cMapPacked: boolean;
    cMapUrl: string;
};
export declare const usePdfProperties: (source: PDFSrc | CMapSource, pdf?: PDFDocumentProxy, filename?: string) => PdfProperties | undefined;
export {};
