Thêm Văn Bản vào Đầu Trang của PDF trong Node.js SDK

    import credentials from "./credentials.json"  with { type: "json" };
    import fs from 'node:fs/promises';
    import path from 'node:path';
    import { PdfApi } from "asposepdfcloud";
    import { TextHeader } from "asposepdfcloud/src/models/textHeader.js";
    import { HorizontalAlignment } from "asposepdfcloud/src/models/horizontalAlignment.js";

    const configParams = {
        LOCAL_FOLDER: "C:\\Samples\\",
        PDF_DOCUMENT_NAME: "sample.pdf",
        LOCAL_RESULT_DOCUMENT_NAME: "output_sample.pdf",
        HEADER_VALUE: "New Heder Value",
    };

    const pdfApi = new PdfApi(credentials.id, credentials.key);

    const pdfHederFooter = {
        async uploadFile (fileName) {
            const pdfFileData = await fs.readFile(configParams.LOCAL_FOLDER + fileName);
            await pdfApi.uploadFile(fileName, pdfFileData);
        },

        async downloadResult() {
            const changedPdfData = await pdfApi.downloadFile(configParams.PDF_DOCUMENT_NAME);
            const filePath = path.join(configParams.LOCAL_FOLDER, configParams.LOCAL_RESULT_DOCUMENT_NAME);
            await fs.writeFile(filePath, changedPdfData.body);
            console.log("Downloaded: " + filePath);
        },

        async uploadDocument () {
            await pdfHederFooter.uploadFile(configParams.PDF_DOCUMENT_NAME);
        },

        async adddTextHeader () {
            const textHeader = new TextHeader();
            textHeader.background = true;
            textHeader.value = configParams.HEADER_VALUE;
            textHeader.horizontalAlignment = HorizontalAlignment.Center;

            await pdfApi.postDocumentTextHeader(configParams.PDF_DOCUMENT_NAME, textHeader);
        },
    }

    async function main() {
        try {
            await pdfHederFooter.uploadDocument();
            await pdfHederFooter.adddTextHeader();
            await pdfHederFooter.downloadResult();
        } catch (error) {
            console.error("Error:", error.message);
        }
    }