aheinecke added a comment.
I've started to look at saving this on Friday. I'm a bit confused as the ReadOnly is a Field value and not a Widget Annotation value and the Adobe Spec says that it is ignored for Widget Annotations. Saving a document with Adobe after changing a ReadOnly field to a Read/Write seems to add a new Widget Annotation for the Field, though. As I don't really have experience working with the PDF File Format / poppler internals I'm a bit out of my depths here. I'll spend some more hours trying to understand it better today. REVISION DETAIL https://phabricator.kde.org/D10864 To: aheinecke, #okular Cc: aacid, michaelweghorn, ngraham