You can download all our data from the links at the bottom of our downloads page:
https://suttacentral.net/downloads
The text of the PTS dictionary is here:
https://raw.githubusercontent.com/suttacentral/suttacentral-data/master/dicts/en/pts_ped.html
Note that there is, in fact, no “complete” Pali English dictionary. The Critical pali Dictionary (which you can use online here was supposed to fulfill this role, but was abandoned in a very incomplete state.
For practical purposes the condensed dictionary may be more useful:
https://raw.githubusercontent.com/suttacentral/suttacentral-data/master/dicts/en/cped.html