AsposePdfAddBackgroundImage

Add background image to PDF file.

function AsposePdfAddBackgroundImage(
    fileBlob,
    fileName,
    fileBackgroundImage,
    fileResultName
)

Parameters:

• fileBlob Blob object
• fileName file name
• fileBackgroundImage image file name
• fileResultName result file name

Return:

JSON object

• errorCode - code error (0 no error)
• errorText - text error ("" no error)
• fileNameResult - result file name

Example:

  /*set the default image filename*/
  var fileBackgroundImage = "/Aspose.jpg";

  var ffileImage = function (e) {
    const file_reader = new FileReader();
    /*set the image filename*/
    fileBackgroundImage = e.target.files[0].name;
    file_reader.onload = (event) => {
      /*prepare(save) the image file from BLOB*/
      AsposePdfPrepare(event.target.result, fileBackgroundImage);
    };
    file_reader.readAsArrayBuffer(e.target.files[0]);
  };

  var ffileAddBackgroundImage = function (e) {
    const file_reader = new FileReader();
    file_reader.onload = (event) => {
      /*add a background image file a PDF-file and save the "ResultBackgroundImage.pdf"*/
      const json = AsposePdfAddBackgroundImage(event.target.result, e.target.files[0].name, fileBackgroundImage, "ResultBackgroundImage.pdf");
      if (json.errorCode == 0) document.getElementById('output').textContent = json.fileNameResult;
      else document.getElementById('output').textContent = json.errorText;
      /*make a link to download the result file*/
      DownloadFile(json.fileNameResult, "application/pdf");
    };
    file_reader.readAsArrayBuffer(e.target.files[0]);
  };