no puedo instalar Dreamweaver con la version mac os sierra.

Hi @Miguel5DCC,

Adobe expects all customers to have the latest operating systems and software, no more than 2 versions back.

Please ensure your computer meets or exceeds the system requirements to run Creative Cloud + OS + all other apps you use. Check each one.
- https://helpx.adobe.com/creative-cloud/system-requirements.html

Below are links to older versions but you must use the VERY IMPORTANT INSTRUCTIONS or it won't work.   ProDesign Tools has Adobe's permission to post these links on their website.  But Adobe may remove the installers at anytime without notice.

https://prodesigntools.com/adobe-cc-2019-direct-download-links.html

The latest version of Dreamweaver requires at least:

• macOS v11.0 (Big Sur)
• macOS v10.15
• macOS v10.14

See: https://helpx.adobe.com/dreamweaver/system-requirements.html

The oldest Dreamweaver versions that support macOS v10.12.X are the following:

• August 2019 (19.2.1)
• June 2019 (19.2)
• April 2019 (19.1)
• January 2019 (19.0.1)
• October 2018 (19.0)

See: https://helpx.adobe.com/dreamweaver/system-requirements/earlier-versions.html

Unfortunately, Adobe only provides installers for their current apps (i.e. 2021) and the previous major version of each (i.e. 2020) - see Apps available for download for informations. For Dreamweaver, that would be 20.2.1 and 21.0/21.1 respectively.