Long Screenshots

Long Screenshots

Turn full-page website screenshots, chat logs, and scrolling captures into shareable chunks.

Common Use Cases

• Full-page website captures — Share entire landing pages
• Chat conversations — Break up long message threads
• Documentation — Split technical guides
• Receipts and invoices — Archive long documents
• Social media threads — Capture entire Twitter/X threads

Capturing Long Screenshots

On macOS

Built-in Screenshot (macOS Sequoia):

1. Press ⌘⇧5
2. Click Options → Capture Entire Page
3. Select browser window
4. Screenshot saves as scrolling capture

Third-party tools:

• CleanShot X — Scrolling capture with annotation
• Xnapper — Beautiful screenshot tool
• Shottr — Free scrolling capture

On iOS

1. Take a screenshot (Side + Volume)
2. Tap preview in corner
3. Select Full Page tab
4. Save as PDF or share

In Browsers

Chrome:

1. DevTools (⌘⌥I)
2. ⌘⇧P → “Capture full size screenshot”

Firefox:

1. Right-click → “Take Screenshot”
2. Select “Save full page”

Safari:

1. Show Web Inspector (⌘⌥I)
2. Click page element
3. Right-click → “Capture Screenshot”

Processing with ImageChunker

Import Your Screenshot

1. Open ImageChunker
2. Drop your long screenshot onto the window
3. Source panel shows the full capture

Choose Your Mode

Smart Mode (Recommended): Best for content with natural sections:

• Web pages with distinct sections
• Chat messages (splits between messages)
• Documents with headings

Regular Mode: Best for uniform content:

• Code screenshots
• Plain text documents
• Continuous content

Configure Settings

For Sharing on Social Media:

Chunk size: 1080×1080 (square)
Mode: Smart
Format: JPEG 90%

For Documentation:

Chunk size: Original width × 800px
Mode: Smart
Format: PNG

For Archival:

Chunk size: Original width × 1000px
Mode: Regular
Format: PNG (lossless)

Preview and Adjust

Check each chunk for:

• Text cut mid-sentence
• UI elements split awkwardly
• Important content at edges

If Smart mode makes poor choices:

1. Try adjusting sensitivity
2. Or switch to Regular with specific height

Export

Export with descriptive names:

webpage_section_001.png
webpage_section_002.png

Platform-Specific Guides

For Twitter/X

Twitter image limits:

• Max 4 images per tweet
• Max 5MB per image
• 1200×675px optimal

ImageChunker Settings:
- Chunk width: 1200px
- Chunk height: 675px (16:9 ratio)
- Mode: Smart
- Format: JPEG 85%

For Slack/Discord

ImageChunker Settings:
- Chunk width: Original (or 1200px max)
- Chunk height: 800px
- Mode: Smart
- Format: PNG

For Documentation Sites

ImageChunker Settings:
- Chunk width: 800-1200px
- Chunk height: 600-800px
- Mode: Smart
- Format: PNG

For Printing

ImageChunker Settings:
- Chunk width: Original
- Chunk height: ~11" at 150 DPI (1650px)
- Mode: Regular
- Format: PNG
- DPI: 150

Tips for Better Results

Before Capturing

1. Zoom to 100% — Avoid scaling artifacts
2. Expand all content — No collapsed sections
3. Hide distractions — Notifications, toolbars
4. Use a consistent width — Same window size each time

For Web Pages

1. Wait for page load — All images and fonts loaded
2. Disable animations — Freeze moving content
3. Consider dark mode — Sometimes cleaner screenshots
4. Remove popups — Cookie banners, chat widgets

For Chat Logs

1. Scroll to top first — Capture from beginning
2. Use native app — Better quality than web
3. Consistent theme — Light or dark throughout
4. Blur sensitive info — Before chunking if needed

For Code

1. Use proper syntax highlighting — Easier to read
2. Consistent line length — Avoid wrapping
3. Include line numbers — For reference
4. Dark themes work well — Less harsh for readers

Batch Processing Screenshots

When you have many screenshots:

1. Name them consistently

   screenshot_page1.png
   screenshot_page2.png

2. Add all to batch queue

   • Drag folder onto ImageChunker
   • Or use Finder extension

3. Apply uniform settings

   • Same chunk size for all
   • Same format and quality

4. Export with structure

   • Subfolder per original
   • Numbered chunks within

Example Workflows

Website Documentation

1. Capture: Full page screenshot at 1440px width
2. Import: Drop into ImageChunker
3. Settings:
   - Mode: Smart (detects sections)
   - Chunk height: 800px
   - Format: PNG
4. Export: docs/website_001.png, docs/website_002.png

Chat Conversation Archive

1. Capture: Scrolling screenshot of entire chat
2. Import: Drop into ImageChunker
3. Settings:
   - Mode: Smart (splits between messages)
   - Chunk height: 600px
   - Format: JPEG 90%
4. Export: chats/convo_001.jpg, chats/convo_002.jpg

Social Media Thread

1. Capture: Entire Twitter thread
2. Import: Drop into ImageChunker
3. Settings:
   - Mode: Smart
   - Chunk size: 1200×675 (Twitter optimal)
   - Format: JPEG 85%
4. Export: Share chunks as image thread