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Ubify Media & Design Operations
UI/UX & DIGITAL MEDIA SPECIALISTS
About This Tool
Photo Collage Maker arranges multiple pictures into a square 1200×1200 pixel layout directly inside your browser window. You can select between three geometric arrangements: a four-pane grid (two rows of two), a side-by-side split (two tall vertical columns), or a stacked split (two wide horizontal rows).
### Geometric Layout Options and Calculations The workspace draws onto an HTML5 canvas element with a fixed export dimension of 1200×1200 pixels. The canvas background is painted using your selected border color, and image slots are computed dynamically based on the border width setting (b): - **Four-Pane Grid (2×2):** Divides the canvas into four equal quadrants. Each slot receives a width of (1200 - 3b) / 2 and a height of (1200 - 3b) / 2. - **Side-by-Side Split:** Divides the canvas horizontally into two vertical columns. Each column receives a width of (1200 - 3b) / 2 and a full vertical height of (1200 - 2b). - **Stacked Split:** Divides the canvas vertically into two horizontal banners. Each banner receives a full horizontal width of (1200 - 2b) and a height of (1200 - 3b) / 2.
### Worked Example: Side-by-Side Comparison Collage Suppose you want to create a side-by-side comparison of two renovation photographs with an 18-pixel white frame: 1. **Upload Input Files:** Select "before-kitchen.jpg" and "after-kitchen.jpg". 2. **Apply Layout Preset:** Click **Side by Side**. 3. **Configure Spacing and Color:** Set border width to 18 px and leave the color picker at "#ffffff". 4. **Dimension Geometry:** - Total canvas size: 1200 × 1200 px. - Usable width per image: (1200 - 3 × 18) / 2 = (1200 - 54) / 2 = 573 px. - Usable height per image: 1200 - 2 × 18 = 1164 px. - Slot 1 position: X = 18 px, Y = 18 px, Width = 573 px, Height = 1164 px. - Slot 2 position: X = 609 px (18 + 573 + 18), Y = 18 px, Width = 573 px, Height = 1164 px. 5. **Download Export:** Click **Download Collage (JPG)**. The tool exports a 1200×1200 JPEG file at 95% quality rating named photo-collage-grid.jpg.
### In-Browser Processing Details All collage rendering occurs locally on your computer or mobile device using the HTML5 Canvas 2D context. Image files loaded from your file picker are converted into memory objects via FileReader data URLs and rendered immediately with drawImage. No images are sent over the internet or uploaded to external servers.
How to Use
- 1
Click Upload Photos to pick 2 to 4 image files from your local storage, or click Try Sample to test with demo tiles.
- 2
Select your preferred layout preset: 4 Grid, Side by Side, or Stacked.
- 3
Adjust the Border Width slider between 0 and 40 pixels, and choose a border fill color using the color selector.
- 4
Examine the live 1200×1200 canvas preview to confirm slot placement and framing.
- 5
Click Download Collage (JPG) to save the finished square graphic as photo-collage-grid.jpg.
Frequently Asked Questions
What are the exact dimensions of the exported collage file?
The output graphic is rendered to an HTML5 canvas measuring exactly 1200 pixels wide by 1200 pixels tall, saved as a JPEG at 0.95 quality.
What happens if I upload only two photos and select the 4 Grid layout?
The canvas cycles through your uploaded images using modular indexing, repeating the first and second images to fill the remaining two quadrants.
Does this collage maker stretch images to fit the slots?
The tool maps the uploaded image dimensions directly into the calculated slot boundaries via the 2D canvas drawImage function.
Are any of my photographs uploaded to a server?
No. FileReader reads your images entirely in local browser memory and draws them directly to an HTML5 canvas element with zero network transmission.