  Improved distance measurements to millisecond pulsars can enhance pulsar
timing array (PTA) sensitivity to gravitational-waves, improve tests of general
relativity with binary pulsars, improve constraints on fuzzy dark matter, and
more. Here we report the parallax and distance measurements to seven Gaia DR2
objects associated with seven International PTA pulsars: J0437-4715,
J1012+5307, J1024-0719, J1732-5049, J1910+1256, J1843-1113, and J1949+3106. By
multiplying the posteriors of the PTA-based parallax measurements with the Gaia
parallax measurement to the pulsar's companion, we improve the distance
measurements from a few percent to a factor of five, and a tentative detection
of a binary companion to J1843-1113. We also find an order of magnitude
improvement in the parallax measurement to J1949+3106.
