code: public void setCompressionLevel(int compressionLevel) {
  		if (compressionLevel < PdfStream.NO_COMPRESSION || compressionLevel > PdfStream.BEST_COMPRESSION)
  			this.compressionLevel = PdfStream.DEFAULT_COMPRESSION;
  		else
  			this.compressionLevel = compressionLevel;
  	}
docs: Sets the compression level to be used for the font streams.
  @param compressionLevel a value between 0 (best speed) and 9 (best compression)
  @since 2.1.3