Password protected PDFs from Acrobat XI cannot be opened in DC when the password contains a hyphen

I have documents created in Acrobat XI that are protected with an Open Password.
The password contains a hyphen "-".
They open fine in Acrobat XI, but Acrobat DC refuses to open them: "The password is incorrect. Please make sure etc..."
Documents created in Acrobat DC that are protected with passwords that contain a hyphen do not have this problem.
I am working with the latest Mac OSX 10.10.3
Luckily I still have Acrobat XI installed, but it is a problem for those with the new Acrobat DC and the new Reader.
Ton

AFAIK there were no code changes in this area between XI and DC, Are you doing all your processing on the same platform (Mac) or does the problem manifest when you move encrypted PDF between Mac and Windows. As I recall the problem that I was talking about manifest when encrypted PDFs were moved between platforms. If you do move your PDFs between platforms, then which Acrobat version do you use on which platform? Is it Acrobat DC on both Mac and Windows? On which platform/Acrobat version do you encrypt and on which platform/Acrobat version you try to open?

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Password protected PDFs from Acrobat XI cannot be opened in DC when the password contains a hyphen

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