Thêm Văn Bản vào PDF trong Node.js SDK

    import credentials from "./credentials.json"  with { type: "json" };
    import fs from 'node:fs/promises';
    import { PdfApi } from "asposepdfcloud";
    import { Color } from "asposepdfcloud/src/models/color.js";
    import { FontStyles } from "asposepdfcloud/src/models/fontStyles.js";
    import { LineSpacing } from "asposepdfcloud/src/models/lineSpacing.js";
    import { Paragraph } from "asposepdfcloud/src/models/paragraph.js";
    import { TextHorizontalAlignment } from "asposepdfcloud/src/models/textHorizontalAlignment.js";
    import { VerticalAlignment } from "asposepdfcloud/src/models/verticalAlignment.js";
    import { WrapMode } from "asposepdfcloud/src/models/wrapMode.js";
    import { TextLine } from "asposepdfcloud/src/models/textLine.js";
    import { Segment } from "asposepdfcloud/src/models/segment.js";
    import { Rectangle } from "asposepdfcloud/src/models/rectangle.js";
    import { TextState } from "asposepdfcloud/src/models/textState.js";

    const LOCAL_FILE_NAME = "c:\\Samples\\sample.pdf";
    const STORAGE_FILENAME = "sample.pdf";
    const PAGE_NUMBER = 1;
    const TEXT_CONTENT = "Lorem ipsum dolor sit amet, consectetur adipiscing elit.";

    async function add() {
        const pdfApi = new PdfApi(credentials.id, credentials.key);
        try {

            const fileBuffer = await fs.readFile(LOCAL_FILE_NAME);
            await pdfApi.uploadFile(STORAGE_FILENAME, fileBuffer);

            const textState = Object.assign(new TextState(), {
                fontSize: 20,
                font: "Arial",
                foregroundColor: Object.assign(new Color(), { a: 255, r: 0, g: 0, b: 255 }),
                backgroundColor: Object.assign(new Color(), { a: 255, r: 255, g: 255, b: 0 }),
                fontStyle: FontStyles.Regular,
                underline: true
            });

            const segment = Object.assign(new Segment(),
                {
                    value: TEXT_CONTENT,
                    textState: textState
                });

            const textLine = Object.assign(new TextLine(), { segments: [segment] });

            const paragraph = Object.assign(new Paragraph(), {
                lineSpacing: LineSpacing.FullSize,
                wrapMode: WrapMode.ByWords,
                rectangle: Object.assign(new Rectangle(), { lLX: 10, lLY: 10, uRX: 300, uRY: 500 }),
                horizontalAlignment: TextHorizontalAlignment.FullJustify,
                verticalAlignment: VerticalAlignment.Center,
                lines: [textLine]
            });

            const result = await pdfApi.putAddText(
                STORAGE_FILENAME,
                PAGE_NUMBER,
                paragraph
            );

            console.log(result.body.status);
            const buffer = await pdfApi.downloadFile(STORAGE_FILENAME);
        } catch (error) {
            console.error("Error adding text to PDF:", error.message);
        }
    }