Hi Vlad,
Thank you for your interest in our Aspose products.
I think you are missing one major thing/step, please try to set license for Aspose.Words and Aspose.Pdf components because you are using those APIs. In short, you may try to add the lines in your code for setting the license for Aspose.Words and Aspose.Pdf products.
Aspose.Words.License license = new
Aspose.Words.License();<o:p></o:p>
license.SetLicense("Aspose.Total.lic");
Aspose.Pdf.License license = new
Aspose.Pdf.License();
license.SetLicense("Aspose.Total.lic");
Just for your information, you have to set license for each product separately that you are using in your projects/applications. For more details please visit documentation links below:
http://www.aspose.com/docs/display/wordsnet/License+Aspose.Words
http://www.aspose.com/docs/display/pdfnet/Licensing