This website contains links to software which is either no longer maintained or will be supported only until the end of 2019 (CKFinder 2).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.
We have restructured our CKEditor for Drupal documentation to make it more user-friendly, so the page that you are looking for was moved.
Please visit the new CKEditor for Drupal page and choose the module version (Enterprise or Open Source) as well as an appropriate Drupal version (6 or 7) to access the documentation.