How large of an output file can a DesignMerge Print Driver produce
If you are using a version of DesignMerge for InDesign Creative Cloud, DesignMerge Print Drivers do not restrict the size of a DesignMerge Print Driver output file. However, the size must not exceed the limitations of the version of operating system where you are running DesignMerge and also must not exceed the amount of space that is available on your system.
If you are using DesignMerge for InDesign CS6 or earlier, the DesignMerge Print Drivers will not produce an output file whose size exceeds 2 GB. If the size of an output file should exceed 2 GB, the Print Driver session will automatically end and the output file will not be saved or sent to your printer.