Indesign CS5.5 won't install

[IslandGirlER]

Hi,

I have InDesign CS5.5, and just got a new laptop and am trying to install it. My laptop is MacBook Pro with MacOS Sierra 12.2. I've downloaded the install twice and tried to install twice. Both times I get the same result. When I click on Install.app, I get the following message:

Install.app can't be opened. You should eject the disk image.

"Install.app" is on the disk image

"InDesign_7_5_LS1.dmg". Google Chrome.app downloaded this disk image on December 27, 2016 from trials3.adobe.com

The two buttons I see are Cancel and Eject Disk Image.

I really need to get InDesign installed on this laptop. Does anyone have any suggestions?

Thank you!

Elisabeth

[Derek Cross]

You've no chance of getting such an old version as InDesign 5.5 working under Sierra. You need to upgrade to a subscription to InDesign CC2015/17.

[IslandGirlER]

I can't afford CC. I need to be able to use CS5.5. Seriously, there's no way to do it?

[Derek Cross]

Revert your OS.

[IslandGirlER]

Wow. That really sucks.

Okay thank you very much for the info.

[Derek Cross]

If you buy a monthly subscription to InDesign you can suspend payment (minimum one month) when you don't need it for a period.

[IslandGirlER]

That helps but if I get a last minute request for an update to a document that makes it tough.

Appreciate your help Derek.