Collage Pro
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Documentation

Get started with Collage Pro and easily create professional photo collages and long image posters

1Quick Start

  1. 1

    Choose Mode

    Select Photo Collage or Long Image mode at the top

  2. 2

    Upload Images

    Click on image areas or drag images to their positions, supports JPG, PNG, WEBP formats

  3. 3

    Adjust Layout

    Select preset layouts or customize spacing, border radius and other parameters

  4. 4

    Export Work

    Click download button, choose format (PNG/JPG/WEBP) and save locally

2Feature Details

Photo Collage Mode

  • •Support 1-16 photos in various layout combinations
  • •100+ preset layout templates (square, portrait, landscape)
  • •Smart layout: Auto-recommend layouts based on uploaded image count
  • •Adjustable aspect ratios (square, 4:3, 16:9, etc.)
  • •Custom background color or upload background image

Long Image Mode

  • •Support unlimited horizontal or vertical stitching
  • •Drag to reorder: Easily adjust image order
  • •Batch upload: Add multiple images at once
  • •Set image spacing and overall padding
  • •Perfect for tutorials, comics, timelines and other long content

Image Editing

  • Position Adjustment: Drag images to change position and precisely locate display area
  • Zoom Function: 0.5x - 3x free zoom, highlight key content
  • Rotation Function: -180° to +180° precise rotation adjustment
  • One-click Reset: Quickly restore image default state

Export Settings

  • Multiple Formats: PNG, JPG, WEBP formats available
  • •
    PNG: Lossless compression, suitable for transparent backgrounds or high quality scenarios
  • •
    JPG: Universal format, smaller file size, suitable for social media sharing
  • •
    WEBP: Modern format, high compression ratio with good quality
  • •
    Adjustable export quality (0.1 - 1.0), balance file size and clarity

3Advanced Tips

💡 Precise Control

After selecting an image, use the numerical sliders on the right to precisely adjust position, zoom and rotation angle for the best visual effect.

🎨 Background Matching

Using solid background colors can make photos stand out more, while uploading background images creates richer visual layers. Recommend using low saturation background images.

📱 Aspect Ratio

For WeChat Moments grid, recommend square (1:1) layout, Instagram posts recommend 4:5 portrait, horizontal display choose 16:9.

⚡ Quick Operations

Long image mode supports drag-to-reorder, directly drag images to adjust order. During batch upload, images will be automatically arranged in selection order.

4Use Cases

Social Media

  • • WeChat Moments grid photos
  • • Instagram collage posts
  • • Weibo image combinations
  • • Xiaohongshu note images

Content Creation

  • • Product showcase posters
  • • Tutorial step images
  • • Travel photo walls
  • • Event review collections

Professional Use

  • • Portfolio showcase
  • • Design comparison images
  • • Product multi-angle display
  • • Timeline records

5FAQ

What image formats are supported?▼

Supports JPG, JPEG, PNG, WEBP and other common image formats. High-resolution images are recommended for better export results.

Will images be uploaded to servers?▼

No. All image processing is done locally in your browser, no image data is uploaded to any server, completely protecting your privacy and security.

What is the quality of exported images?▼

Export quality depends on your chosen format and quality parameters. PNG format is lossless compression, JPG and WEBP can adjust quality parameters (0.1-1.0). Recommend using 0.9 or higher quality parameters for high-quality output.

Can I save my designs?▼

Currently the tool does not provide cloud save functionality. You can export the final work, if you need to edit again, please re-upload images and adjust parameters.

Does it support mobile devices?▼

Yes! Collage Pro uses responsive design and can be used smoothly on mobile devices such as phones and tablets. Recommend using the latest version of Chrome, Safari and other modern browsers.

What's the maximum number of images that can be stitched?▼

Photo collage mode supports up to 16 images in various layouts. Long image mode theoretically has no limit, but considering browser performance, recommend not exceeding 50 images per stitch.

Ready to start creating?

Experience Collage Pro now and create your unique photo works

Start Creating →