Start with a blank canvas sized for your collage

Open Photoshop and create a new document. Go to File > New. The size depends on what you're making: a 12 by 9 inch canvas at 300 DPI works for a printed 4 by 6 photo collage, while 1200 by 900 pixels at 72 DPI is standard for web. Name the file something you'll recognize later — "Family_Collage_2024" is clearer than "Untitled-1".

Set the background to white or transparent depending on whether you want a border around your photos. If you choose white, Photoshop fills it automatically. If you want transparency (so you can add a background later), select Transparent from the Background Contents dropdown. You can always add a solid color layer underneath later if you change your mind.

Key Takeaways

  • Create a new document at the size you need, then place your photos as separate layers so you can move and resize each one independently.
  • Use File > Place Embedded to bring photos in, which lets you scale them without losing quality before they're locked into the canvas.
  • Arrange photos by dragging them with the Move tool, and resize using the Free Transform tool (Ctrl+T on Windows, Cmd+T on Mac) while holding Shift to keep proportions.
  • Add spacing between photos by leaving gaps when you position them, or use a solid color layer underneath to create a visible border effect.

Place your photos as layers, not pasted pixels

Go to File > Place Embedded and select your first photo. Photoshop opens it as a smart object — a layer that remembers it's a photo and lets you resize it without pixelation. Click and drag a corner handle to make it larger or smaller. Hold Shift while dragging to keep the photo's original proportions so it doesn't stretch. Press Enter when the size looks right.

Repeat this for each photo you want in the collage. Each one becomes its own layer in the Layers panel on the right side of your screen. This matters because you can move, resize, or delete any photo without affecting the others. If you paste photos instead of placing them, you lose this flexibility and end up with a single merged layer that's hard to edit.

Arrange photos using the Move tool and alignment guides

Select the Move tool from the toolbar on the left (it looks like a cross with arrows). Click on any photo layer and drag it to a new position on the canvas. Photoshop shows you alignment guides — thin lines that snap your photo to the edge of another photo or to the center of the canvas. These guides help you line things up without measuring.

If you want more control over spacing, turn on the grid. Go to View > Show > Grid. The grid appears as a pattern of lines across your canvas and helps you place photos at even intervals. You can adjust grid spacing in Edit > Preferences > Guides, Grid & Slices (on Windows) or Photoshop > Preferences > Guides, Grid & Slices (on Mac).

Resize individual photos to fit your layout

Click on a photo layer in the Layers panel, then press Ctrl+T (Windows) or Cmd+T (Mac) to open the Free Transform tool. A box with handles appears around the photo. Drag any corner handle to resize. Hold Shift while dragging to keep the photo's width-to-height ratio the same — without Shift, you can stretch it into odd shapes.

If you need to rotate a photo, move your cursor just outside a corner handle until it changes to a curved arrow, then drag to rotate. Press Enter when you're done. If you want to undo the resize, press Escape before pressing Enter, and the photo returns to its previous size.

Create visible spacing or borders between photos

One way to separate photos is to leave empty space between them. Another is to add a background layer that shows through the gaps. To do this, create a new layer below all your photos: go to Layer > New > Layer, then drag it to the bottom of the Layers panel. Fill it with a color using the bucket fill tool, or leave it white if that's what you want.

If you want a thin border around each photo, select a photo layer and go to Layer > Layer Style > Stroke. Set the size to 2 or 3 pixels, choose a color (black or white usually works), and click OK. The border appears around that photo. Repeat for other photos if you want them all to have borders.

Flatten and save your finished collage

Once you're happy with the layout, go to Image > Flatten Image. This merges all your layers into one, which makes the file smaller and ready to share or print. Photoshop warns you that you can't undo this step — if you think you might want to edit it later, save a copy first.

Save the collage as a JPEG for email or web sharing: go to File > Export As, choose JPEG from the format dropdown, and click Export. For printing, save as a TIFF or PSD (Photoshop's native format) to keep the highest quality. If you're uploading to social media, JPEG at 72 DPI is fine; for printing, use 300 DPI.

Frequently Asked Questions

Can I undo changes after I flatten the image?

No — flattening permanently merges all layers. Before you flatten, save a copy of your file as a PSD (Photoshop's native format) so you can go back and edit individual photos later if you need to. Then flatten a second copy for sharing.

What if a photo is blurry after I make it bigger?

Photoshop can't add detail that isn't there. If you placed the photo as a smart object and it's still blurry, the original file may be low resolution. Try using a higher-resolution version of that photo, or accept the blurriness as part of the collage's style.

How do I add text or captions to my collage?

Select the Type tool from the toolbar (it looks like a T), click where you want text, and type. You can change the font, size, and color using the options at the top of the screen. Click elsewhere when you're done typing.

Can I make a collage with photos of different sizes?

Yes — that's the whole point of arranging them as separate layers. Resize each photo to whatever size you want using Free Transform, and position them however you like. Uneven sizes often look more interesting than a grid of identical rectangles.

What's the difference between Place Embedded and Place Linked?

Place Embedded puts the photo inside your Photoshop file, so the file is larger but the photo stays with it. Place Linked keeps the photo separate and just shows a preview in Photoshop — the file is smaller, but if you move or delete the original photo, the collage breaks. For collages, Embedded is safer.