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I have used Adobe Acrobat for a couple of years marking students assessment and signing them.
For the past week or so, each time I open a PDF document, the fill and sign and all the features that are usally displayed in the right hand pane are not there.
I have the latest Adobe Acrobat DC installed on my desk top and it is apparently up to date.
Any ideas what the problem is?
I have fixed the problem. The PDFs had a HP Sure protection. If you remove this protection the PDF automatically opens up as it should, with all the features displayed on the right hand pane.