Pages not opening pages document

What explicit version of Pages (Pages menu : About Pages) are you using? We have found from experience that when users state “latest” that it isn't always the case. The last release of Pages was v5.6.1, which I have here. How old is your MacBook Pro and how much RAM memory do you have installed (Apple logo : About This Mac)?

Any time that you have to force quit Pages, you should hold down the shift key when reopening that document - as standard procedure. Have you tried alternative methods of opening that document?

1. Control-click (two finger tap if configured) on the document icon, Open with : Pages (default) (5.?.?).
2. Launch Pages : File Chooser : click on the document icon : Open (same as Pages : File menu : Open…)
3. Pages : File menu : Open Recent… : Document name
4. Drag/drop document icon onto Pages (v5) application icon in Dock

A laggy Pages v5 may be the outcome of a document jammed full of large images, or something else running in the operating system that is competing with Pages for System resources. If you have too many applications open simultaneously with Pages, you may be running low on available memory. If your hard drive is almost full, that will cause the operating system to slow down. And if Spotlight is indexing your boot drive, or other drives, this will cause a general slowness of your Mac for about the first 30 - 60 minutes after you power it on.

Have you knowingly added, removed, or deactivated any fonts, with Font Book, or another font management utility?

Also, are you running any anti-virus, anti-malware, or knowingly, any so-called Mac cleaner applications?

I updated my last post. Read that again, and reply.

I would like you to quit all of your applications and shut down your Mac. I want you to boot differently, and it is called Safe Boot mode. It will start OS X in a mode where System caches (including font databases) are removed and rebuilt, the disk is checked for errors, and kernel drivers are not loaded as they would be in a normal boot operation. Thus, you will observe a longer boot sequence, potential screen artifacts after boot, and a slower post-boot OS X.

Safe Boot Mode

1. Power down your Mac.
   1. On Power, press and hold the shift key until you observe the horizontal boot progress bar
   2. A login window will eventually appear, and a red Safe Boot will appear in the upper right corner of the screen
   3. Before you press the arrow button after your password entry, press and hold the shift key again. Continue pressing the shift key until your Desktop icons are present.
2. In Safe Boot mode, open your problematic document in Pages again. Can you work on the document without issues? It may be slower responding, but this is Safe Boot and that is to be expected. Looking for a Pages that does not lock up on you, or beach ball. Experience?
3. Reboot normally.
4. Has the behavior of Pages and this particular document improved, or resolved itself?

Does the warning panel reappear and flag those licensed, Microsoft Calibri fonts once you have booted normally?