import { Asset } from "../../io/Asset";
import { PDFWatermarkParams } from "../params/pdfwatermark/PDFWatermarkParams";
import { PDFServicesJob } from "./PDFServicesJob";
import { ExecutionContext } from "../../internal/ExecutionContext";
import { NotifierConfig } from "../../config/notifier/NotifierConfig";
/**
 * A job that add a watermark on specified pages of PDF document using a source watermark PDF. The first page of source
 * watermark PDF will be added as a watermark in input PDF document.
 *
 * @example
 * Sample Usage:
 * ```js
 *         const sourceFileReadStream = fs.createReadStream("<SOURCE_PATH>");
 *         const waterMarkFileReadStream = fs.createReadStream("<WATERMARK_SOURCE_PATH>");
 *
 *         const credentials = new ServicePrincipalCredentials({
 *             clientId: process.env.PDF_SERVICES_CLIENT_ID,
 *             clientSecret: process.env.PDF_SERVICES_CLIENT_SECRET
 *         });
 *
 *         const pdfServices = new PDFServices({credentials});
 *
 *         const [inputAsset, watermarkAsset] = await pdfServices.uploadAssets({
 *             streamAssets: [{
 *                 readStream: sourceFileReadStream,
 *                 mimeType: MimeType.PDF
 *             }, {
 *                 readStream: waterMarkFileReadStream,
 *                 mimeType: MimeType.PDF
 *             }]
 *         });
 *
 *         const pageRangesForWatermark = new PageRanges().addSinglePage(1);
 *
 *         const watermarkAppearance = new WatermarkAppearance({
 *             appearOnForeground: false,
 *             opacity: 50,
 *         });
 *
 *         const pdfWatermarkParams = new PDFWatermarkParams({
 *             watermarkAppearance: watermarkAppearance,
 *             pageRanges: pageRangesForWatermark
 *         })
 *
 *         const job = new PDFWatermarkJob({
 *             inputAsset: inputAsset,
 *             watermarkAsset: watermarkAsset,
 *             params: pdfWatermarkParams
 *         });
 *
 *         const pollingURL = await pdfServices.submit({job});
 *
 *         const pdfServicesResponse = await pdfServices.getJobResult({
 *             pollingURL,
 *             resultType: PDFWatermarkResult
 *         });
 *
 *         const resultAsset = pdfServicesResponse.result.asset;
 *         const streamAsset = await pdfServices.getContent({asset: resultAsset});
 * ```
 */
export declare class PDFWatermarkJob extends PDFServicesJob {
    private readonly _inputAsset;
    private readonly _watermarkAsset;
    private readonly _params?;
    private readonly _outputAsset?;
    /**
     * Constructs a new `PDFWatermarkJob` instance.
     *
     * @param params The parameters for constructing an instance of `PDFWatermarkJob`.
     * @param params.inputAsset The input asset of PDF document on which watermark has to be applied.
     * Cannot be undefined.
     * @param params.watermarkAsset The input asset of PDF document whose first page will be used as watermark.
     * Cannot be undefined.
     * @param [params.params] {@link PDFWatermarkParams} object containing the parameters for PDF watermark.
     * @param [params.outputAsset] {@link Asset} object representing the output asset.
     * @remarks External assets can be set as output only when input is external asset as well.
     */
    constructor(params: {
        inputAsset: Asset;
        watermarkAsset: Asset;
        params?: PDFWatermarkParams;
        outputAsset?: Asset;
    });
    /**
     * @hidden
     */
    process(executionContext: ExecutionContext, notifierConfigList?: NotifierConfig[]): Promise<string>;
    private generatePDFServicesAPIRequest;
}