/// <reference types="node" />
/// <reference types="node" />
import { PathLike } from "fs";
import { PdfFormat } from "../common";
import { PageProperties } from "../libre-office";
export declare class PDFEngine {
    static merge({ files }: {
        files: PathLike[];
    }): Promise<Buffer>;
    static convert({ files, properties, pdfFormat, merge, }: {
        files: PathLike[];
        properties?: PageProperties;
        pdfFormat?: PdfFormat;
        merge?: boolean;
    }): Promise<Buffer>;
    static generate(filename: string, buffer: Buffer): Promise<void>;
}