Image Editor

Professional image editing built into NodeTool workflows.

Edit images directly in NodeTool with a full-featured editor.

Quick Access: Click the edit icon (✏️) on any image output or property to open the editor.

Overview

The Image Editor provides professional image editing tools without leaving your workflow. Edit images inline and see results immediately.

Features:

  • Non-destructive editing with unlimited undo/redo
  • Multiple drawing and shape tools
  • Crop, rotate, and flip operations
  • Brightness, contrast, and saturation adjustments
  • Brush painting with customizable size, color, and opacity
  • Export edited images back to your workflow or download

Opening the Editor

From Node Outputs

When a node outputs an image:

  1. Look for the edit icon (✏️) on the image preview
  2. Click to open the full editor

From Node Properties

For image input properties:

  1. Click the edit icon next to the image property
  2. Opens the editor to prepare your input image

Tools

The Image Editor includes multiple tools organized in the left toolbar.

Selection Tool (Select)

Icon: Hand/Cursor
Shortcut: V

  • Default tool for navigating the canvas
  • Pan around the image
  • No editing actions - just viewing

Use when: You want to navigate without accidentally drawing.

Crop Tool

Icon: Crop rectangle
Shortcut: C

Resize and reframe your image.

How to crop:

  1. Click the Crop button
  2. Drag the corners and edges of the crop box
  3. Reposition the box by dragging inside it
  4. Click ✓ Apply to commit, or ✗ Cancel to abort

Tips:

  • Maintain aspect ratio by shift-dragging corners
  • Fine-tune with keyboard arrows after placing the box
  • Crop is applied to the current canvas state (includes all previous edits)

Draw Tool (Brush)

Icon: Brush
Shortcut: B

Paint freehand on the image.

Settings:

  • Brush Size: Slider adjusts diameter (1-100 pixels)
  • Color: Click color swatch to open color picker
  • Opacity: Slider adjusts transparency (0-100%)

How to use:

  1. Select Draw tool
  2. Adjust size, color, opacity as needed
  3. Click and drag on canvas to paint
  4. Release to finish the stroke

Use cases:

  • Add annotations or highlights
  • Touch up small areas
  • Draw attention to specific regions
  • Create simple illustrations

Erase Tool

Icon: Eraser
Shortcut: E

Remove painted content (returns to original image underneath).

Settings:

  • Eraser Size: Same as brush size slider

How to use:

  1. Select Erase tool
  2. Adjust size
  3. Drag over areas to erase painted strokes

Important: Only erases drawn content, not original image pixels. To remove original image content, use crop or fill tools.

Fill Tool (Bucket)

Icon: Paint bucket
Shortcut: G

Fill areas with solid color.

Settings:

  • Fill Color: Click color swatch to choose

How to use:

  1. Select Fill tool
  2. Choose fill color
  3. Click an area to fill

Behavior: Fills contiguous regions of similar color. Tolerance determines how similar pixels must be to be filled.

Text Tool

Icon: T letter
Shortcut: T

Add text overlays to images.

How to use:

  1. Select Text tool
  2. Click where you want text to appear
  3. Type your text
  4. Adjust font, size, color in the properties panel
  5. Click outside text box to finish

Text properties:

  • Font family
  • Font size
  • Text color
  • Bold, italic, underline
  • Alignment

Shape Tools

Draw geometric shapes on your image.

Rectangle Tool

Icon: Rectangle
Shortcut: R

Draw rectangles and squares.

How to use:

  1. Select Rectangle tool
  2. Click and drag to create
  3. Hold Shift for perfect squares

Properties:

  • Fill color and opacity
  • Stroke color and width

Ellipse Tool

Icon: Circle/Ellipse
Shortcut: O

Draw circles and ellipses.

How to use:

  1. Select Ellipse tool
  2. Click and drag to create
  3. Hold Shift for perfect circles

Properties:

  • Fill color and opacity
  • Stroke color and width

Line Tool

Icon: Diagonal line
Shortcut: L

Draw straight lines.

How to use:

  1. Select Line tool
  2. Click starting point
  3. Click ending point (or drag)

Properties:

  • Stroke color
  • Line width
  • Line cap style (round, square, butt)

Arrow Tool

Icon: Arrow
Shortcut: A

Draw arrows to point at features.

How to use:

  1. Select Arrow tool
  2. Click starting point (tail)
  3. Click ending point (head) or drag

Properties:

  • Stroke color
  • Line width
  • Arrowhead style

Use cases:

  • Point out specific features
  • Create diagrams or annotations
  • Show directions or flow

Quick Actions

Actions in the top toolbar apply immediately.

Rotate

Rotate Clockwise (90°)
Icon: ↻
Shortcut: Ctrl/⌘ + ]

Rotates the entire canvas 90 degrees clockwise.

Rotate Counter-Clockwise (90°)
Icon: ↺
Shortcut: Ctrl/⌘ + [

Rotates the entire canvas 90 degrees counter-clockwise.

When to use:

  • Fix image orientation
  • Portrait to landscape conversion
  • Correct camera rotation

Flip

Flip Horizontal
Icon: ⇆
Shortcut: Ctrl/⌘ + H

Mirrors image left-to-right.

Flip Vertical
Icon: ⇅
Shortcut: Ctrl/⌘ + V

Mirrors image top-to-bottom.

Use cases:

  • Create mirror effects
  • Fix reversed text or images
  • Symmetry adjustments

Adjustments

Fine-tune image appearance with real-time adjustments.

How to access:

  1. Click the Adjustments button (magic wand icon)
  2. Panel opens with three sliders

Brightness

Range: -100 to +100
Default: 0

Makes the image lighter or darker.

  • Negative values: Darken the image
  • Positive values: Lighten the image

Contrast

Range: -100 to +100
Default: 0

Adjusts the difference between light and dark areas.

  • Negative values: Reduce contrast (flatten)
  • Positive values: Increase contrast (more dramatic)

Saturation

Range: -100 to +100
Default: 0

Controls color intensity.

  • -100: Grayscale (no color)
  • 0: Original colors
  • +100: Hyper-saturated (vivid colors)

Tips:

  • Adjustments are applied in real-time as you move sliders
  • Combine adjustments for complex effects
  • Use subtle adjustments for professional results
  • Reset all adjustments with the Reset button

History & Undo

The editor maintains a complete history of your changes.

Action Shortcut Description
Undo Ctrl/⌘ + Z Step backward through history
Redo Ctrl/⌘ + Shift + Z Step forward through history
Reset Reset button Clear all edits, return to original

History tracking:

  • Every action creates a history entry
  • Navigate through unlimited undo/redo steps
  • Each step is labeled with the action type
  • History persists while editor is open

Memory note: Large images with extensive history may use significant memory. Consider saving intermediate versions if working on complex edits.

Zoom & Navigation

Control your view of the canvas without affecting the image.

Zoom Controls

Action Shortcut Description
Zoom In Ctrl/⌘ + + or scroll up Magnify the view
Zoom Out Ctrl/⌘ + - or scroll down Reduce the view
Fit to Screen Ctrl/⌘ + 0 Show entire image
Zoom to Selection Ctrl/⌘ + 1 Fill screen with selection

Zoom levels: 10% to 400%

Pan Controls

Action How
Pan Space + drag, or middle-click drag
Pan with Select tool Click and drag background

Tips:

  • Use high zoom for detailed work (brushing, text editing)
  • Use fit-to-screen to see overall composition
  • Pan while zoomed to work on different areas

Saving & Exporting

Save to Workflow

Button: Save (disk icon)
Shortcut: Ctrl/⌘ + S

Saves the edited image back to the node.

  • Updates the node’s property or output with edited version
  • Changes appear immediately in your workflow
  • Original image is preserved (non-destructive)

Use when: You want to use the edited image in subsequent nodes.

Download Image

Button: Download (arrow down icon)
Shortcut: Ctrl/⌘ + D

Downloads the edited image to your computer.

  • Opens browser download dialog
  • Saves as PNG format (preserves transparency)
  • Default filename includes timestamp

Use when: You want a copy for external use.

Close Without Saving

Button: Close (X icon)
Shortcut: Esc

Closes the editor without applying changes.

  • Discards all edits made in this session
  • Returns to workflow with original image unchanged

Confirmation: If you have unsaved changes, you’ll see a confirmation dialog.

Keyboard Shortcuts

Tools

Key Tool
V Select
C Crop
B Brush (Draw)
E Eraser
G Fill
T Text
R Rectangle
O Ellipse (circle)
L Line
A Arrow

Actions

Shortcut Action
Ctrl/⌘ + Z Undo
Ctrl/⌘ + Shift + Z Redo
Ctrl/⌘ + ] Rotate clockwise
Ctrl/⌘ + [ Rotate counter-clockwise
Ctrl/⌘ + H Flip horizontal
Ctrl/⌘ + V Flip vertical
Ctrl/⌘ + S Save
Ctrl/⌘ + D Download
Esc Close editor
Shortcut Action
Ctrl/⌘ + + Zoom in
Ctrl/⌘ + - Zoom out
Ctrl/⌘ + 0 Fit to screen
Space + drag Pan canvas

Common Workflows

Basic Image Correction

Goal: Fix brightness and orientation.

  1. Open image in editor
  2. Click Adjustments (magic wand icon)
  3. Adjust Brightness slider to correct exposure
  4. Adjust Contrast for better definition
  5. If rotated wrong, use Rotate buttons
  6. Click Save to apply

Time: Under 30 seconds

Adding Annotations

Goal: Highlight specific areas with arrows and text.

  1. Open image in editor
  2. Select Arrow tool (A)
  3. Draw arrows pointing at features of interest
  4. Select Text tool (T)
  5. Click near arrows to add explanatory text
  6. Adjust colors to ensure visibility
  7. Click Save

Use cases:

  • Tutorial images
  • Bug reports with visual markers
  • Documentation screenshots

Creating Thumbnails

Goal: Extract a specific portion of an image.

  1. Open image in editor
  2. Select Crop tool (C)
  3. Drag crop box to desired region
  4. Resize to preferred aspect ratio
  5. Click ✓ Apply
  6. Optionally adjust brightness/contrast
  7. Click Save or Download

Use cases:

  • Profile pictures
  • Featured image sections
  • Focus on specific content areas

Touch-Up Editing

Goal: Remove small imperfections or add details.

  1. Open image in editor
  2. Zoom in to problem area (Ctrl/⌘ + +)
  3. Select Brush tool (B)
  4. Adjust size to match area (small brush for precision)
  5. Select color matching nearby pixels
  6. Carefully paint over imperfections
  7. Use Eraser (E) to refine if needed
  8. Zoom out to check overall appearance
  9. Click Save

Tips:

  • Use low opacity (30-50%) for natural blending
  • Make multiple light strokes instead of one heavy stroke
  • Sample colors from the image for best matching

Tips & Best Practices

Performance

  • Large images: Editor handles images up to 8000x8000 pixels efficiently
  • History: Extensive edit history increases memory usage; reset if sluggish
  • Complex edits: Consider breaking into multiple edit sessions
  • Browser limits: Very large images may hit browser memory constraints

Non-Destructive Editing

  • Original image is never modified
  • All edits are applied to a copy
  • Close without saving to revert completely
  • Save creates a new version in the workflow

Quality Preservation

  • Editor maintains original image quality
  • Adjustments use high-quality algorithms
  • Saves as PNG to preserve transparency
  • No compression artifacts unless image is re-encoded

Workflow Integration

  • Edit at any point in your workflow
  • Chain multiple image editing nodes
  • Use variables to batch-process similar edits
  • Combine with AI image nodes for hybrid workflows

Collaboration

  • Edited images include all changes in saved version
  • Share workflows with edited images included
  • Download option enables external sharing
  • Consider adding comment nodes to explain edits

Troubleshooting

Editor Won’t Open

Symptoms: Clicking edit icon does nothing or shows error.

Solutions:

  1. Check console for errors (F12 in browser)
  2. Verify image has loaded completely
  3. Try refreshing the page
  4. Clear browser cache and reload

Changes Not Saving

Symptoms: Edits disappear after closing editor.

Solutions:

  1. Always click Save button before closing
  2. Check for save confirmation message
  3. Verify workflow is not in read-only mode
  4. Ensure you have write permissions

Slow Performance

Symptoms: Laggy brush strokes, slow zoom/pan.

Solutions:

  1. Click Reset to clear history
  2. Reduce image size before editing (crop first)
  3. Close other browser tabs
  4. Restart browser to free memory
  5. Consider editing in smaller sections

Image Looks Different After Saving

Symptoms: Colors or quality change after save.

Solutions:

  1. Check if adjustments were accidentally applied
  2. Reset adjustments sliders to 0 if needed
  3. Verify monitor color calibration
  4. PNG format preserves quality - no compression loss

Can’t Undo Far Enough

Symptoms: Undo doesn’t go back to original.

Solutions:

  1. History has limits based on available memory
  2. Use Reset button to return to original completely
  3. Close and reopen editor for fresh start
  4. Consider editing in stages with saves in between

Next Steps

Now that you know the Image Editor:

  1. Try editing an image in your current workflow
  2. Experiment with different tools and adjustments
  3. Create an annotation workflow for documentation
  4. Explore combining with AI image generation nodes

More resources:

Last updated: January 2026