Converts a PDF file to base64 string.

pdf2base64.ts

getFileInfo(evt: any): void {
  const reader: FileReader = new FileReader();
  const files: Array<any> = evt.target.files || evt.dataTransfer.files;

  reader.addEventListener(
    'load',
    () => {
      this.form.file_path = reader.result;
    },
    false
  );

  if (files[0]) {
    reader.readAsDataURL(files[0]);
  }
} // getFileInfo