PRMs for download

I will be off-grid for a few days and enjoying a quiet time with RISC OS on a Pinebook.
An ideal opportunity to study the PRMs, but the hard copy books weigh too much to carry.

On the ROOL Wiki it says that the PRMs are available as PDFs which seems ideal except that the link given leads to htm versions not PDF.
Is there another link? – the RISC OS Ltd site no longer seems to offer the PRMs.

PS I am leaving shortly so probably won’t be able to answer any posts.

Try this link PRMs volumes 1 to 4 are available but not yet 5a.

A copy of the PRMs is included in the Raspberry Pi distro at SDFS::0.$.Documents.Books.PRMs.

Thanks Chris