Guides

Creating & publishing chapters

Explore the chapter workflow with a client-side-only demo — nothing is uploaded or saved.

Last updated: 2026

Where chapters live (for real)

Open Publishing, select a series, then Add chapter — that opens the new-chapter editor at /author/publishing/series/[series-id]/chapter/new. To change an existing chapter, use the editor at /author/publishing/chapter/[chapter-id]/edit. The sandbox below imitates the editor UI without calling our APIs.

Interactive preview — Chapter editor simulation. Images stay in your browser as previews only.
Publishing / Demo series
draft
Chapter 1

Mirrors the live chapter editor from Publishing. See Where chapters live on this guide page for steps and URLs to the real tools. Everything below runs in your browser only.

Basics

Recommended series (optional)

In the live editor you search for any public series on Inkstra. Readers see a card below the previous/next chapter buttons: “The author thinks you would like …”

Chapter thumbnail

Keep your thumbnail all-ages

This image appears in chapter lists, navigation, and previews, even when the chapter is age-restricted—so it should stay appropriate for all ages (no nudity, sexual imagery, graphic gore, or offensive text in the image). Mature visuals belong inside your labeled comic pages.

Set a chapter-specific thumbnail
Drag & drop an image here, or use the upload button. Preview only — not uploaded from this guide.
No chapter thumbnail
  • Use a vertical-friendly crop that reads well at small sizes.
  • Recommended: ~720×1080px (2:3 portrait).
  • PNG for crisp lines/text; high-quality JPEG for photos.
If no chapter thumbnail is set, the series thumbnail may be used elsewhere.

Visibility & content

Comments
Reactions
Content warnings (optional)

Readers see a notice before opening the chapter when any box is checked.

Scheduling

Choose a release date/time, then use Schedule… in the header when publishing for real. Leave empty for “publish immediately” workflows.

Reading semantics

Format: webtoon • Direction verticalInherited from your series on Inkstra; not editable per chapter. This demo assumes a webtoon / vertical series.
Pages
Image tips for Webtoon
  • Use tall, scrolling images. Recommended width 800–1080px; height can vary.
  • PNG for crisp text/lines; high-quality JPEG is OK to reduce file size.
  • Images over 1500px in height are automatically sliced for loading; they still render as one strip and you can reorder slices if needed.
  • Page order is the order you add images; you can reorder anytime by dragging.
Uploaded pages may be optimized for faster loading; they should look the same in the reader.
No pages yet. Click Add images… to upload (or drag & drop images here).

    States & pages

    • Draft — work in progress until you publish or schedule.
    • Scheduled — set a release time; the live editor validates and queues the chapter.
    • Published — visible to readers per platform rules and gates.
    • Pages — upload ordered images in production; here you only attach local files for a thumbnail preview.

    Recommended series (optional)

    In the chapter editor you can pick another public, approved series to recommend when readers finish this chapter. It appears in the reader below the previous/next chapter buttons as “The author thinks you would like …” with cover art, description, and an age-restricted badge when needed. You cannot recommend the same series this chapter already belongs to.

    Age-restricted & content warnings

    Mark a chapter Age-restricted (18+) when it's for adults. With proper labeling, non-explicit nudity and stronger violence can appear in the comic itself; explicit sexual content is not allowed. Chapter thumbnails still need to stay all-ages safe in lists. Content warnings (optional) are separate—readers see a notice before opening when any box is checked. See our Terms.

    Inkstra+ release window

    New chapters may reach Inkstra+ readers first; everyone else after the platform window described in our FAQ. You don't toggle this per chapter — it's platform-wide.

    Reader URLs

    Chapters are read at /reader/c/[chapter-id]. Series pages use /series/[slug].

    Creating & publishing chapters | Inkstra