Reader Gordon Arbuthnot has discovered an interesting chink in iClouds armor. He writes:

I recently printed a Mail message as a PDF file and chose iCloud as the destination. I thought it would show up in Previews iCloud file storage but its not there. Nor is it in the Pages file storage. Any idea of where it is and how I can get to it?

I do. But before we get to that, let me recount your steps for the benefit of those readers just getting out of bed.

In order to do what youve done, youd have to follow these steps:

  • Open a message.
  • Choose File -> Print.
  • From the sheet that appears, click on the PDF menu and choose Save as PDF.
  • In the next sheet that appears choose iCloud from the destination pop-up menu.
  • Click Save.

This is something you can do from within any application that supports iClouds Documents in the Cloud feature. I spell it out so that readers understand that what youve done cant happen by accident. Its a many-stepped and purposeful process.

So what happens now? If youd done this in Pages, for example, you could launch Pages at a later time and, from the Pages documents window, find your PDF file. However, youll notice that it bears a gray tint. That indicates that it cant be opened in Pages, which makes a modicum of sense given that Apple has determined that Preview is the application for PDF files and not Pages. However, heres where sandboxing comes in. That file is stored among Pages documents, not Previews. And so when you choose Preview's Open command, you wont see the file because its locked away in a different applications sandbox.

Fortunately, in this case the solution is easy. Just drag the file out of Pages documents window to your Macs desktop. It will be moved from iCloud to your Mac. At that point you can do with it what you like.

But youre not interested in Pages or Preview, you want to know about Mail. The interesting thing here is that while Mail will allow you to save printed PDF files to iCloud, theres no way to access them because Mail doesnt have a documents window. Likewise, if you were to go to and click on Mail, youd find no storage location for anything created by Mail. It doesnt exist.

Those among the waving pitchfork crowd have likely picked up their implements along with very large signs that legibly read This is exactly why we should have some kind of single access point to all of the documents we place on iCloud, regardless of the application used to create them!

In a way, you do. Try this:

In the Finder, hold down the Option key, click on the Go menu, and choose the now-visible Library command. Locate and open the Mobile Documents folder. Within youll find multiple folders. In your case you want the com~apple~mail folder. Inside youll find a Documents folder. Within it is your PDF file.

This folder is your safety net for those times when your documents appear to have been sent on a one way trip to Nowheresville. Its not a folder you want to rely on, though. Your best bet is to simply not try to save printed PDF files to iCloud. My guess is that Apple simply didnt notice that through the Print PDF command you can save documents to iCloud. I expect if this becomes a serious problem, an OS update will disable the option to save these files in the ether.