https://trofisecurity.com/assets/img/iso27001-2013.pdf is ISO 27001:2013 - newest edition of ISMS. Also ISO 27000:2016 is freely published by ISO and hence can be obtained here : Publicly Available Standards.
Can I download ISO standards for free?
these standards are available online, but not downloadable (for legitimate downloads you need to purchase your copy in the ISO shop or with your national standards organisation)
How to download British standards for free?
IEC (International Electrotechnical Commission)\n\n Read-only copies of those standards are available to the public at the ANSI Portal. To view a standard, you must register at the site (free) and have the FileOpen plug-in loaded on your computer.
Where can I get IEC standards for free?
The standards are protected by copyright and most of them must be purchased. However, about 300 of the standards produced by ISO and IEC's Joint Technical Committee 1 (JTC 1) have been made freely and publicly available.