1. Download and install the GoProof add-on from this page
2. Open InDesign, Photoshop, Premiere Pro, Illustrator or InCopy CC
3. Select and open the GoProof Add-on by navigating to Window > Extensions > GoProof
4. In the GoProof panel, click Create GoProof Account to set one up or LOG IN if you have one already
5. That's it, start proofing amazing creative cloud work!
If you have any issues installing an extension using the standard instructions above, please use Adobe's alternative install method. To do this, visit your My Exchange page https://www.adobeexchange.com/my-exchange.html, click on the 'Install issues?' link to the right, then follow the instructions to install it using an Extension Install Utility. If you're still getting stuck, email asupport@adobe.com for help!
If you have any general user questions, visit the GoProof support page at https://support.oppoliscloud.com/goproof-help-sheets