{"article":{"id":32913712749588,"url":"https://webtooncanvas.zendesk.com/api/v2/help_center/en-us/articles/32913712749588.json","html_url":"https://webtooncanvas.zendesk.com/hc/en-us/articles/32913712749588-Designing-Your-Series-Episode-Thumbnails-Sizes-Guidelines-and-Help","author_id":417230893052,"comments_disabled":false,"draft":false,"promoted":false,"position":6,"vote_sum":8,"vote_count":10,"section_id":42846173709716,"created_at":"2024-12-10T02:37:47Z","updated_at":"2026-07-23T21:38:36Z","name":"Designing Your Series & Episode Thumbnails - Sizes, Guidelines, and Help","title":"Designing Your Series & Episode Thumbnails - Sizes, Guidelines, and Help","source_locale":"en-us","locale":"en-us","outdated":false,"outdated_locales":[],"edited_at":"2026-07-22T20:39:40Z","user_segment_id":null,"permission_group_id":1051851,"content_tag_ids":[],"label_names":[],"body":"

Series Thumbnails - Square & Vertical

Series Thumbnails are used to help readers discover your series on the WEBTOON app and website.

Creators need to upload a Square and Vertical Series Thumbnail in order to publish their series.

Square Series Thumbnails

Pro tip: To stay within the file size limit, consider adjusting the image quality! e.g. Photoshop > Save for Web > Change the Quality to 80% (up to 60%)

\"Square

 

Vertical Series Thumbnails

\"Vertical
\"Vertical

 

Editing Series Thumbnails

Series Thumbnails may be edited at any time. 

To edit your series thumbnail:

    \n
  1. Navigate to your Dashboard on the WEBTOON website.
    2. \n
  2. Choose the series you wish to edit, and select ‘Manage Series.’
    3. \n

Episode Thumbnails 

Episode Thumbnails appear next to each episode on your series’ ‘Manage Series’ page.

If you’re returning to WEBTOON after a break, and have not previously updated the size of your episode thumbnails, you may notice differences in how your episode thumbnails appear.

\"Vertical
\"CANVAS

 

Editing Episode Thumbnails

Episode Thumbnails may be edited at any time.

To edit your Episode Thumbnails:

    \n
  1. Navigate to your Dashboard. 
    2. \n
  2. Find the series you wish to edit, and select ‘Manage Episode.’
    3. \n
  3. Find the episode you want to update and click ‘Edit.’
    4. \n
","user_segment_ids":[]}}