Adobe Express Document Manipulation Skill

This skill guides you in planning and executing document operations in the document sandbox, from simple text insertion to complex multi-element layouts.

When to Use This Skill

• Planning what content to insert (shapes, text, images, audio, video)
• Sequencing multiple document operations safely
• Understanding Document SDK APIs and type signatures
• Designing insertion workflows triggered from UI actions
• Troubleshooting document operation failures

Quick Start

Common Document Operations

All operations run in document sandbox using Document SDK:

Text insertion:

• Query: "How do I create text with custom font size and color?"
• Relevant: text.createText(), editor.context.insertionParent

Shape insertion:

• Query: "Create a filled rectangle at specific position"
• Relevant: editor.createRectangle(), dimension and fill APIs

Image insertion (from iframe runtime):

• Query: "Insert image blob into current page"
• Relevant: addOnUISdk.app.document.addImage(blob)

Audio/Video insertion (from iframe runtime):

• Query: "How do I add audio or video to the document?"
• Relevant: addAudio() (title mandatory), addVideo() (title optional)

Sequence Operations Safely

1. Identify insertion parent: Are you adding to current page or current selection?
2. Plan async operations: Fetch resources before document edits
3. Handle errors: Wrap in try-catch, provide user feedback
4. Test ordering: Some operations depend on prior state

Query Official MCP for Details

When implementing, ask MCP:

• "What's the current signature for editor.createRectangle()?"
• "What properties does RectangleNode expose?"
• "What's the type of editor.context.insertionParent?"

Document Operation Patterns

Insert Text

1. Get insertion context: editor.context.insertionParent
2. Create text node with text.createText()
3. Set properties (fontSize, fill, transform, etc.)
4. Append to parent with children.append()

Insert Shape

1. Create shape with editor.createRectangle() (or other shape)
2. Set dimensions and position
3. Set fill and stroke properties
4. Append to parent

Insert Media

1. (From iframe) Fetch blob from URL or user input
2. Call addOnUISdk.app.document.addImage/Audio/Video(blob, options)
3. For audio: title is mandatory
4. For video: title is optional

Common Pitfalls

• No insertion parent: Check editor.context.insertionParent exists
• DOM access in sandbox: All DOM operations fail in sandbox; use iframe runtime instead
• Missing title on audio: Audio requires title parameter; video does not
• Async before append: Fetch data before editing to avoid race conditions

Skill Handoffs

Pass to other skills when:

• UI button that triggers insertion → adobe-express-spectrum-ui-ux
• Fetching media from OAuth provider → adobe-express-oauth-authentication
• Paid feature gating → adobe-express-monetization
• Manifest and runtime questions → adobe-express-core

References

• Document SDK Reference
• Code Samples