AsposePdfPagesToPng

Convert PDF file to PNG files.

function AsposePdfPagesToPng(
    fileBlob,
    fileName,
    fileResultName,
    resolution
)

Parameters:

• fileBlob Blob object
• fileName file name
• fileResultName result file name template (for sample: “ResultPdfToPng{0:D2}.png” where {0}, {0:D2}, {0:D3}, {0:Dn} - format page number)
• resolution image resolution, default 300 dpi

Return: JSON object

• errorCode - code error (0 no error)
• errorText - text error ("" no error)
• filesCount - jpg files count
• filesNameResult - array of result filenames

Example:

  var ffileToPng = function (e) {
    const file_reader = new FileReader();
    file_reader.onload = (event) => {
      /*convert a PDF file to png-files with template "ResultPdfToPng{0:D2}.png" ({0}, {0:D2}, {0:D3}, ... format page number), resolution 150 DPI and save*/
      const json = AsposePdfPagesToPng(event.target.result, e.target.files[0].name, "ResultPdfToPng{0:D2}.png", 150);
      if (json.errorCode == 0) {
        document.getElementById('output').textContent = "Files(pages) count: " + json.filesCount.toString();
        /*make links to result files*/
        for (let fileIndex = 0; fileIndex < json.filesCount; fileIndex++) DownloadFile(json.filesNameResult[fileIndex], "image/png");
      }
      else document.getElementById('output').textContent = json.errorText;
    };
    file_reader.readAsArrayBuffer(e.target.files[0]);
  };