You cannot actually convert AVI to PDF, only thing you can do is put a video inside the PDF document so it can be played on certain page. This can usually be done with programs like SWFTools that convert the AVI to SWF which is then put in the document.
Convert Audio Video Interleave movie to Adobe Portable document format.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert avi to pdf on Windows
SWFTools is a collection of several utilities for working with Adobe Flash files (SWF files).
Convert from avi file
to pdf file
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.