ROSATPSPC observations of the blazars PKS 1034–293 and PKS 1335–127 are presented. In both cases the spectra are well fitted by a single absorbed power law. For PKS 1034–293 we obtainF1keV=0.23±0.02 &mgr;Jy, &Ggr;=1.23+0.54−0.50,nH=1.31.7−1.2(1020cm−2) (90% uncertainty). The column density is significantly smaller than the galactic value derived from Starket al. 1992. For PKS 1335–127 we find FkeV=0.50±0.02 &mgr;Jy, &Ggr;=2.29+0.55−0.51,nH=6.60+3.00−2.23(1020cm−2): in this case the column density derived from the fit is in good agreement with the recent determination by Jacksonet al. 1993. ©1994 American Institute of Physics