Hi All ,
Hi Srinivas,
Thank you for contacting support. Your snapshot shows an evaluation watermark. It means, you are not applying an Aspose license in the code. We recommend our clients use the latest version and apply a valid Aspose license. You can get a 30 day temporary license for the testing purposes from the purchase portal. Its option is available in step 4. Please also refer to these helping links: Apply License to Aspose.Pdf for .NET API and Download Aspose.Pdf for .NET API
Kindly send us your source PDF and the complete code (Aspose.Pdf API part). It will help us to replicate the said problem on our side. We shall then investigate and reply you appropriately. You can attach a Zip archive of files to your reply post. Your response is awaited.