Function embedDocId

apps/OpenSign/src/constant/Utils.js:1505–1537

(pdfOriginalWH, pdfDoc, documentId)

//function for embed document id
export const embedDocId = async (pdfOriginalWH, pdfDoc, documentId) => {
  const appName = "OpenSign™";
  // `fontBytes` is used to embed custom font in pdf
  const fontBytes = await fileasbytes(
    "https://cdn.opensignlabs.com/webfonts/times.ttf"
  );
  pdfDoc.registerFontkit(fontkit);
  const font = await pdfDoc.embedFont(fontBytes, { subset: true });
  //pdfOriginalWH contained all pdf's pages width and height
  for (let i = 0; i < pdfOriginalWH?.length; i++) {
    const fontSize = 10;
    const textContent = documentId && `${appName} DocumentId: ${documentId} `;
    const pages = pdfDoc.getPages();
    const page = pages[i];
    const getSize = pdfOriginalWH[i];
    try {
      const getObj = compensateRotation(
        page.getRotation().angle,
        10,
        5,
        1,
        getSize,
        fontSize,
        rgb(0.5, 0.5, 0.5),
        font,
        page
      );
      page.drawText(textContent, getObj);
    } catch (err) {
      console.log("Err in embed docId on page", i + 1, err?.message);
    }
  }
};

// function for convert input text value in image
export function convertTextToImg(fontStyle, text, color, widgetDims) {