Presentations (.sdd) made using any of the OpenDocument based programs (Impress mainly) can be exported as PDF documents right inside their programs using a default PDF function. You can download these programs for free and and export .sdd as .pdf should you need it.
Convert OpenOffice.org presentation to Adobe Portable document format.
We have found 2 software records in our database eligible for .sdd to .pdf file format conversion.
Multiplatform software - convert sdd to pdf on any platform
Free presentation program from OpenOffice.org
Convert from sdd file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned sdd to pdf. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Powerful multimedia presentation software tool from LibreOffice suite