Hi Arif,
Thank you for using Syncfusion product.
Here is the answers for your questions,
1)Word to PDF
I am afraid that I was not able to reproduce the issue. Please look into the sample from the below specified link:
http://www.syncfusion.com/support/user/uploads/Sample_3902f050.zipCould you please try reproducing it in the above sample or send us the reproducing steps with the couple of PDF files and also your system details so that we could sort out the cause of the issue and provide you a solution?
2)ExcelToPDF
Essential PDF does not have the support to covert the excel to PDF document. This feature will be available in future release.
Please let me know if you need any further assistance.
Regards,
Suba