Seems like the XnConvert program supports the Flexible Image Transport System format (*.fts) and thus can be used to export it to PDF format.
Convert Flexible Image Transport System format to Adobe Portable document format.
We have found 2 software records in our database eligible for .fts to .pdf file format conversion.
Multiplatform software - convert fts to pdf on any platform
XnConvert is batch image processor for Windows, Apple Mac OS X and Linux that is compatible with 500 picture image file formats. It includes metadata editing features, transformation and adjustment effects, filters etc.
Convert from fts file
to pdf file
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 fts 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.
A free (for non-commercial purposes) powerful cross-platform media browser, viewer and converter. Compatible with more than 500 formats and also supports export to 70 different file formats. It works on Windows, Linux and macOS (OS X).