Thanks for your interest in our products.
I am a representative of Aspose.Pdf team. This product provides the capabilities to convert XML, XSL-FO, SVG, PCL, Image, Text and HTML pages into PDF format. It also provides the capabilities to concatenate PDF files into a single resultant document. Please take a look over following links for information on
Besides this, please note that we have a product name Aspose.Words which provides the capability to convert MS word files into PDF format. For more information, please visit How-to: Convert a Document to PDF
We have a product named Aspose.Cells which offers the feature to convert Excel worksheets into PDF format. Converting to PDF Files
We also have a product named Aspose.Slides which provides the capability to convert PowerPoint presentations into PDF format. Converting to PDF File
So as per your requirement, you can use individual products to convert the files into PDF format and then use Aspsoe.Pdf to concatenate these files into a single resultant PDF file. In the event of any further query, please feel free to contact.