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I have several pdfs that have the "Previous View" (alt-back arrow) option disabled/grayed out. I'm not the only one with this unresolved problem.

Does anyone know why and if it's possible to fix the files so the feature is enabled?

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Previous view is taken from HKCU\Software\Adobe\Acrobat Reader\10.0\RememberedViews. For each pdf file reader creates a new registry key with iTime and xID subkeys (and with other sub-sub keys that contain information about the previous view). For those files, where you cant go to the previous view xID key is not created. I don't know what is the purpose of this key, but if you can figure out, you will find the root of the problem – username Sep 6 '11 at 17:35

Try this

"Right-click anywhere in the toolbar and choose Page Navigation, then the button(s) you want to add." (Adobe forums)

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Thanks, but the problem is not that the toolbar button isn't visible. The problem is that the previous view button/menu item is grayed out and disabled. – glenviewjeff May 27 '11 at 18:55

I don't know why the 'previous view' doesn't work on some pdf files, but at least there is a simple workaround. Take the latest version of acrobat reader, click "Save as" -> "PDF..." and use this new file. That should work

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Thanks! I'll give this a shot next time I run into this and accept the answer if it works. – glenviewjeff Sep 12 '11 at 13:28

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