This website contains links to software which is either no longer maintained or will be supported only until the end of 2019 (CKFinder 2). For the latest documentation about current CKSource projects, including software like CKEditor 4/CKEditor 5, CKFinder 3, Cloud Services, Letters, Accessibility Checker, please visit the new documentation website.
If you look for an information about very old versions of CKEditor, FCKeditor and CKFinder check also the CKEditor forum, which was closed in 2015. If not, please head to StackOverflow for support.
This feature is dependent on the ForcePastAsPlainText setting that, if true, must ensure that all pastings in the editor must be in plain text. In that case, if ShowDropDialog is set to true, the editor will also show the paste dialog on "Drag and Drop" operations to ensure that the dropped text will be plain text. Sytax of the option:
FCKConfig.ShowDropDialog = true ;