import { LocalInputSource } from "../input/index.js";
import { ExtractedPdfs } from "../pdf/extractedPdfs.js";
export declare class PdfExtractor {
    /**
     * Buffer containing the PDF data.
     * @private
     */
    private sourcePdf;
    /**
     * Filename of the PDF.
     * @private
     */
    private filename;
    /**
     * Input document.
     * @private
     */
    private readonly inputDocument;
    /**
     * Whether the extractor has been initialized.
     * @private
     */
    private initialized;
    /**
     * PDF library instance.
     * @private
     */
    private pdfLib;
    /**
     * List of extracted PDFs.
     * @private
     */
    private extractedPdfs;
    constructor(inputDocument: string | LocalInputSource);
    init(): Promise<void>;
    /**
     * Gets the number of pages in the PDF.
     * @returns The number of pages in the PDF.
     */
    getPageCount(): Promise<number>;
    /**
     * Extracts pages from the PDF.
     * @param pageIndexes
     */
    extractSubDocuments(pageIndexes: number[][]): Promise<ExtractedPdfs>;
}