iCloud: Documents in the Cloud overview
If you have the same apps set up to use iCloud on more than one device, iCloud can keep your documents and data up to date in those apps across all your devices. For example, when you create or change documents using the iWork apps—Keynote, Pages, or Numbers—iCloud keeps the documents up to date in those apps on your iOS devices, on your Mac with OS X v10.8 or later, and in iCloud iWork at icloud.com/iwork.
If your Mac has OS X v10.7.5, or if you have a Windows computer, you can download a document from iCloud iWork to your computer, edit it, then upload the revised version to iCloud iWork. It’s then automatically updated on your iOS devices and your Mac with OS X v10.8 or later. You can also upload an iWork (Keynote, Pages, and Numbers) or Microsoft Office (PowerPoint, Word, and Excel) document created on your computer to iCloud iWork. For instructions and a complete list of supported document types, see Access iWork documents stored in iCloud.
To use Documents in the Cloud, you need to turn on the iCloud Documents & Data feature for each iOS device and Mac. For instructions, see Change iCloud feature settings.
Access iWork documents from a web browser
If you’re using another iCloud app, click the iCloud button ), then click iWork.
When accessing iCloud iWork, make sure you use a browser recommended in the Apple Support article iCloud: System requirements.
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