NEWCKEditor AI is here! Learn how to supercharge your editor with AI on our webinar.

CKEditor 5
Cloud Services
CKBox

Sign up (with export icon)

Getting started
Features
Examples
Framework
API
Updating

Support

Cloud Services
CKBox

CKEditor 5 (with chevron-right icon)

Support

Getting started (with chevron-right icon)

Features (with chevron-right icon)

Examples (with chevron-right icon)

Framework (with chevron-right icon)

Updating (with chevron-right icon)

API (with chevron-right icon)

adapter-ckfinder
- uploadadapter
  - CKFinderUploadAdapter
- utils
ai
- aiassistant
- aichat
  - model
    - aichatcontext
    - aichatmodels
  - aichat
    - AIChat
    - AIChatConfig
- aichathistory
  - aichathistory
    - AIChatHistory
- aicore
  - model
    - aimodels
      - AIModels
      - LocalizedAIModelData
- aieditorintegration
  - aitogglebutton
    - aitogglebuttonui
      - AIToggleButtonUI
    - toggleaicommand
      - ToggleAICommand
  - aieditorintegration
    - AIEditorIntegration
- aiquickactions
  - aiquickactions
- aireviewmode
  - aireviewmode
- aitabs
- aiconfig
- errors
alignment
autoformat
autosave
- autosave
basic-styles
block-quote
bookmark
case-change
ckbox
ckfinder
clipboard
cloud-services
code-block
collaboration-core
comments
core
document-outline
easy-image
- cloudservicesuploadadapter
  - CloudServicesUploadAdapter
- easyimage
  - EasyImage
editor-balloon
editor-classic
editor-decoupled
editor-inline
editor-multi-root
email
emoji
engine
enter
essentials
- essentials
  - Essentials
export-inline-styles
export-pdf
- exportpdf
- exportpdfcommand
  - ExportPdfCommand
export-word
- exportword
- exportwordcommand
  - ExportWordCommand
find-and-replace
font
footnotes
format-painter
fullscreen
heading
highlight
horizontal-line
html-embed
html-support
icons
- index
image
import-word
indent
- indentcommandbehavior
- indent
  - Indent
- indentblock
  - IndentBlock
- indentblockcommand
  - IndentBlockCommand
- indentconfig
  - IndentBlockConfig
- indentediting
  - IndentEditing
- indentui
  - IndentUI
language
line-height
link
list
list-multi-level
markdown-gfm
- html2markdown
  - html2markdown
    - MarkdownGfmHtmlToMd
- markdown2html
  - markdown2html
    - MarkdownGfmMdToHtml
- gfmdataprocessor
  - MarkdownGfmDataProcessor
- markdown
  - Markdown
- pastefrommarkdownexperimental
  - PasteFromMarkdownExperimental
media-embed
mention
merge-fields
minimap
page-break
pagination
- legacyerrors
- pagination
paragraph
paste-from-office
paste-from-office-enhanced
- legacyerrors
- pastefromofficeenhanced
  - PasteFromOfficeEnhanced
real-time-collaboration
remove-format
restricted-editing
revision-history
select-all
show-blocks
slash-command
source-editing
- sourceediting
  - SourceEditing
- sourceeditingconfig
  - SourceEditingConfig
source-editing-enhanced
special-characters
style
table
template
theme-lark
track-changes
typing
ui
undo
upload
uploadcare
utils
watchdog
widget
word-count

FontSizeOption

Public
Protected
Private
Inherited
Internal
Deprecated

interface

The font size option descriptor.

See source (with github icon)

Properties

model : string | undefined

The attribute's unique value in the model.
See source (with github icon)
title : string

The user-readable title of the option.
See source (with github icon)
upcastAlso : Array<MatcherPattern> | undefined

An array with all matched elements that the view-to-model conversion should also accept.
See source (with github icon)
view : ViewElementDefinition | undefined

View element configuration.
See source (with github icon)

Was this page helpful?

Every day, we work hard to keep our documentation complete. Have you spotted outdated information? Is something missing? Please report it via our issue tracker.

GitHub Support Contact Us

© 2003 - 2025 CKSource. All rights reserved.

model
title
upcastAlso
view