The most recent version of ScraperWiki depends on Poppler (or so the GitHub says). Unfortunately, it only specifies how to get it on macOS and Linux, not Windows.
A
MSYS2 has the latest version available for install.
If you don't want to install the whole enviroment (or you wanted some kind of portable version) you could also just download Poppler straight from the repository, but then you'd also have to manually handle dependencies. Namely: libwinpthread, nspr, gcc-libs, nss, curl, brotli, openssl, libidn2, libiconv, gettext, libunistring, nghttp2, libpsl, libjpeg-turbo, lcms2, openjpeg2, libpng, zlib, libtiff, xz and zstd.