ʻO Curtail (ma mua ʻo ImCompressor) he mea hoʻopili kiʻi pono e kākoʻo ana i nā ʻano faila PNG a me JPEG. Kākoʻo ia i nā ʻano hoʻopiʻi poho ʻole a me ka nalowale me kahi koho e mālama a mālama ʻole paha i nā metadata o nā kiʻi. Hoʻoulu ʻia e Trimage a me Image-Optimizer.