I'm attaching a more complete backtrace of the crash (triggered with Evolution’s quickref.pdf). I tried the xpdf version in Debian Squeeze which is also 3.02-11, it does not crash. The main difference between Squeeze and Natty is the poppler version, Debian Squeeze still uses 0.12.4-1.2 (libpoppler5), whereas Natty uses 0.14.5-0ubuntu2 (libpoppler7). It seems the crash arises from an incompatibility between xpdf and the newer poppler version.
I'm attaching a more complete backtrace of the crash (triggered with Evolution’s quickref.pdf). I tried the xpdf version in Debian Squeeze which is also 3.02-11, it does not crash. The main difference between Squeeze and Natty is the poppler version, Debian Squeeze still uses 0.12.4-1.2 (libpoppler5), whereas Natty uses 0.14.5-0ubuntu2 (libpoppler7). It seems the crash arises from an incompatibility between xpdf and the newer poppler version.