We have found one software suitable in our database for this conversion.
Mathcad mathematical and engineering calculation software has default PDF support, so users can easily export Mathcad worksheets (.xmcd) as .pdf files.
The same can be probably achieved using a virtual PDF printer in any software capable of viewing or at least printing .xmcd files. But otherwise it seems that the options for xmcd to pdf conversion are sometimes limited.
XMCD
An xmcd file extension is related to the PTC Mathcad, a computing and engineering software. An xmcd file contains worksheet.
PDF
A pdf file extension is mainly used for Adobe Portable document format, commonly referred to as PDF. All programs that create some sort of documents or projects offer the possibility to export their format to PDF format. A free PDF viewer (Adobe Reader) is available for download from Adobe website.