Bohuzel Adobe tuto funkci z nejakeho duvodu odmita implementovat, resi se to jiz roky:
https://adobexd.uservoice.com/forums/353007-adobe-xd-feature-requests/suggestions/13471170-find-and-replace-text
Zadny jiny zdrojovy text nemam, pouze pdf. Jinak bych to samozrejme neresil.