Arabic text extraction from PDF

public String getString() throws Exception {
    com.aspose.pdf.Document pdfDocument =null;
    String extractedText = "";
try {
if (inputStream == null) {
            pdfDocument = new com.aspose.pdf.Document(this.path);
        }
else {
            pdfDocument = new com.aspose.pdf.Document(this.inputStream);
        }
        com.aspose.pdf.TextAbsorber textAbsorber = new com.aspose.pdf.TextAbsorber();
        pdfDocument.getPages().accept(textAbsorber);
        extractedText = textAbsorber.getText();
    }
finally {
        pdfDocument.freeMemory();
        pdfDocument.dispose();
        pdfDocument.close();
        pdfDocument=null;
    }        

return extractedText;
}

Attached the Result of text extraction with sample pdf file.

Could you please assist us to solve this issue .

Thanks in advance.