If you read Arabic, the complete Kitab Ar-Ruh is freely available on Al-Maktabah Al-Shamilah (shamela.ws). You can use browser translation tools to help, though accuracy will suffer.
If you obtain a reliable English version (either the al-Jibaly abridgement or a full scholarly translation), you will find the following structure:
If you download the file, this is the typical structure you will find:
A search for “Kitab ar-Ruh English PDF” typically yields results from:
Important note: No official, publisher-authorized free PDF is publicly released by Dar as-Sunnah. Any free PDF is likely a scanned copy of the printed book or an unauthorized digital reproduction.
