Will Adobe CS5.5 Work on Yosemite?

Application Compatibility

Applications Compatibility (2)

One option is to create a new partition (~30- 50 GB), install the new OS, and ‘test drive’ it. If you like/don’t like it it, you can then remove the partition. Do a backup before you do anything. By doing this, if you don’t like it you won't have to go though the revert process.

A partition is part of the space on a hard drive. Using Disk Utility on an empty drive you can, during the formatting operation, set up two or more partitions. Each partition will appear on your desktop as a separate drive and can be used as such. You can save to each, open files in each, eject each, mount each, as though each was a separate physical drive. Partitions are a tidy way to keep files separate from others not related to them: such as the installation of a complete operating system; backups of your current system; files etc.

I'm not sure but I don't think that complex applications like Adobe's can be backed up as stand-alone applications. This is probably because when they are installed the installation involves putting code into the bowels of the Operating System, and making a copy of the application would not copy that code. Obviously, Adobe make sure that their software cannot be copied simply, for obvious reasons.

I think (only think) from an experience a few years ago that Adobe keep a record of a person's purchases and subsequent upgrades of their software, and you might be able to contact Adobe (their Chat line worked well for me a year ago when I upgraded from Photoshop and Indesign CS5.5 to CS6) and on giving them details they might allow you to re-download their application and give you an activation code.

When I upgraded to Yosemite yesterday I simply ran Apple's installer obtained from the App Store. This installed Yosemite without interfering with any documents, application, utilities, music, images, emails etc. so I was able to use my iMac right away as normal. I have successfully upgraded the OS like this from Lion to M. Lion, to Mavericks, to Yosemite, relying on the OS installation not corrupting any of these files. Worked so far.

More generally you might like to consider getting a backup utility like Carbon Copy Cloner or SuperDuper. Using CCC my iMac does a full cloned bootable backup of my whole system at 4 am every day on to a USB 2 external hard drive. If I get corruption (very rare) I can just boot up (restart) on the CCC clone as the Startup disc (see System Preferences) and get back to 4 am in about 10 minutes, or use CCC to clone the backup clone on to the internal hard drive in about 20 minutes.

Good luck.

A good place to check out which versions of apps work with which versions of OS X is at http://roaringapps.com/apps?index=a

I paid for it. £112.34 I contacted Adobe (I can't remember the details of how). They had info that told them that I owned CS 5.5, and gave me (after payment) an installation code to allow the trial version that I had already downloaded to work. The reason why thay had info on me was from an earlier upgrade that I had done. (I'm a bit hazy now about those details.) Try their chat system. I found it helpful. They tried to convince me to to move to the Cloud but that is far too expensive for me. I don't have customers to unload cost on to. If and when the Adobe software becomes unusable on future Mac Op. Systems I will need to try another software, but that could be several years away.

Carbon Copy Cloner is at:

http://bombich.com

I have used it for many years. Very reliable. It is now at Version 4.0 £26 I regularly do what they call:

Smart Updates

This update only the files that have been added or modified, and is bootable.

Of course you need an external drive (or a network or perhaps the Cloud but I don't know about these). But avoid Firewire drives. They no longer sleep when you sleep the Mac (OS Mavericks and Yosemite) and Apple refuses even to acknowledge the problem. USB drives are OK.

SteveKir, why wouldn't you just do a back up using Time Machine on an external hard drive? That's what I was going to do ...

I've come to this post to find out whether to upgrade my OS 10.6.8 (Snow Leopard?) as I'm in the same predicament as Chelseafromoh. I want my CS5.5 Suite to be able to work on a later OS for a while until it's worth my while financially to upgrade to the latest Creative Cloud system. On Adobe's site, they say that CS5.5 doesn't work on any later OS's. A good way to make people think that they have to upgrade to the latest ... Good one Adobe!!! A friend said that she's on Yosemite and her CS5 is working. Go figure ... I just want to be totally sure.

Did you end up finding out whether you could upgrade Chelseafromoh?