Base64 file

Base64 file

Posted by: nsilva on 11 July 2023, 1:21 pm EST

• 

  nsilva

  • Post Options:
  • Link
    Copy

  Posted 11 July 2023, 1:21 pm EST

  Gcpdfviewer is it possible to open a base64 string as a file pdf?

• 

  manish.gupta

  

  • Post Options:
  • Link
    Copy

  Posted 12 July 2023, 3:40 am EST

  Hi,
  
  The issue is that the GcPdfViewer does not accept the base64 string. This should be converted to the Uint8Array. Please use the following working code snippet to test if it is working at your end or not.

  let _base64 = base64_string;
  window.onload = function(){
      //GcPdfViewer.LicenseKey = "***key***";
      let viewer = new GcPdfViewer("#viewer", {});
      viewer.addDefaultPanels();
      viewer.open(base64ToArrayBuffer(_base64));
  }
  function base64ToArrayBuffer(base64) {
      var binaryString = atob(base64);
      var bytes = new Uint8Array(binaryString.length);
      for (var i = 0; i < binaryString.length; i++) {
          bytes[i] = binaryString.charCodeAt(i);
      }
      return bytes.buffer;
  }

  
  
  Here are the accepted datatypes for the Open() method for GcPdfViewer.
  
  https://www.grapecity.com/documents-api-pdfviewer/api/classes/gcpdfviewer.html#open

  Regards,
  
  Manish Gupta