CKEditor Questions & Answers

To migrate form CKEditor 4 to CKEditor 5, follow the steps given below: 

Remove CKEditor 4 from your project. 

Install CKEditor 5 via npm or CDN:

Update your JavaScript code to initialize CKEditor 5 instead of CKEditor 4. Example:

Check the plugins that you used in CKEditor 4 and find their CKEditor 5 equivalents, as architecture of plugins is different. 

If you used custom plugins or configurations, rewrite them using CKEditor 5’s new API and plugin system. 

Test your editor to make sure that everything works as expected with CKEditor 5’s modern features and UI.

To upload files and images in CKEditor 4, follow the steps given below:

Download CKEditor from its official website.  

Make sure you use the 'Standard' or 'Full' build, as these include the necessary plugins for file uploads.

Navigate to your CKEditor configuration file (typically

config.js

).

Add this line to enable file upload:

This points to a server-side script (e.g.

upload.php

) that handles the actual file uploads.

After setting everything up, open CKEditor and use the image or file button to open the dialog box. 

In the dialog, you will see an Upload tab where you can select a file from your computer and upload it to the server.

Create the

 upload.php 

file (or use another server-side language) to handle the file upload logic.

Configure the script to store the files on your server and return the file path to CKEditor after a successful upload. 

After setting everything up, open CKEditor and use the image or file button to open the dialog box. 

In the dialog, you will see an Upload tab where you can select a file from your computer and upload it to the server.

You can use the autosave functionality which automatically saves the editor content at regular intervals to prevent your content from getting lost in CKEditor 4.

The CKEditor 4 core team doesn’t work on MediaWiki integrations. If you need to utilize any other custom format like Wiki markup, you will have to alter the output format of the editor.

To embed videos, pictures and other media in CKEditor 4, you must use the ‘Media Embed’ plugin. To embed media in CKeditor 4, follow the steps given below:

• Open the CKEditor where you wish to embed media
• Copy and paste the URL of the image, video or other media from the source website to CKEditor
• The media should automatically embed as a playable widget in the editor if the 'Media Embed' plugin is active.

To integrate CKFinder with CKEditor 5, follow the steps given below:

Install the

@ckeditor/ckeditor5-ckfinder

package

Enable the CKFinder plugin for CKEditor 5

Add CKFinder your list of plugins

Configure the feature

Pass extra configuration options to CKEditor

The most effective approach to speed up and optimize CKEditor 4, is to utilize the CKEditor Builder to choose only the features and plugins that are necessary. This reduces the overall file size. Setting up language settings and using optimization techniques for images when applicable can further optimize the platform.

Some of the features that CKEditor 4 provides are as follows:

• Content editing
• Document tools
• Customization
• Browser support
• Integration

To add source code formatting in CKEditor, follow the steps given below: 

Download the ‘Code Snippet plugin’ and extract it to the ‘plugins’ directory of CKEditor

Alter the

config.js

file by adding the ‘code snippet plugin’ to the ‘extra Plugins’ option:

Add a button for inserting code snippets in the toolbar:

Add the ‘Code Snippet CSS’ file in your HTML page to style the code by linking it to the

highlight.js

library used by the plugin:

Now, you should see the Code Snippet button in the toolbar, allowing you to insert formatted source code.

To add images from local storage in CKEditor, follow the steps given below: 

Enable the 'Image' plugin in CKEditor if it's not enabled by default.

Modify the CKEditor configuration (

config.js

) to include the

filebrowserImageUploadUrl

option:

Create an image upload handler on your server that processes the uploaded image and returns the image URL in the format that is required by CKEditor 

Add an upload button in the toolbar by ensuring the ‘Image’ button is available:

Set permissions for image uploading if needed.