Visual CertExam exams (.vce files) can be prepared from PDF documents using the free Exam Formatter program which you can download for free from web. This seems to be pretty much the most convenient way to achieve pdf to vce conversion.
Convert Adobe Portable document format to Visual CertExam Suite exam.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert pdf to vce on Windows
A convert for exam files
Convert from pdf file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.