Changing your document size in Canva

Open any design in Canva and go to the menu in the top left corner. Click the dropdown arrow next to your document name, then select Document settings or the gear icon. You will see width and height fields showing your current dimensions in pixels. Change these numbers to whatever size you need, and Canva will resize your canvas and reflow your content to fit.

If you do not know the exact dimensions you need, Canva offers preset sizes for common formats: Instagram posts (1080 × 1080 pixels), Facebook covers (820 × 312 pixels), YouTube thumbnails (1280 × 720 pixels), business cards, flyers, and dozens more. Click the preset button instead of entering custom numbers, and Canva will do the math for you.

The resize happens when ready. Text and images you have already placed will scale down or reposition, though you may need to adjust them by hand afterward if the new size is very different from the old one.

Key Takeaways

  • Document settings are in the top left menu, next to your design name, and show your current width and height in pixels.
  • You can type custom dimensions or choose from Canva's preset sizes for Instagram, Facebook, YouTube, business cards, and other common formats.
  • Resizing happens when ready, but text and images may need manual adjustment if the new size is much smaller or larger than the original.
  • Canva measures in pixels by default, but you can change the unit to inches or centimeters in the same settings menu.

Using preset sizes to avoid guessing dimensions

Canva's preset library is faster than looking up dimensions yourself. When you click Document settings, you will see a button labeled Change template or Resize document depending on your version. Click it and you will see categories: social media, print, video, presentations, and more.

Select the platform or format you are designing for. If you are making a LinkedIn post, Canva shows you 1200 × 627 pixels. If you need a standard letter-size flyer, it shows 8.5 × 11 inches. You do not have to remember or calculate anything — just pick the format and Canva handles the rest.

This is especially useful if you are new to design or switching between formats often. A single Canva account can hold designs in dozens of different sizes, so you can create a social media post one day and a business card the next without hunting for specifications.

Entering custom dimensions for specific projects

If your project needs a size that is not in Canva's presets, go to Document settings and look for the width and height fields. Delete the current number and type your own. You can work in pixels, inches, centimeters, or millimeters — click the unit dropdown next to the number field to switch.

For example, if a printer told you to design at 300 pixels per inch and your final print size should be 4 × 6 inches, multiply: 4 × 300 = 1200 pixels wide, 6 × 300 = 1800 pixels tall. Enter 1200 and 1800 in the width and height fields, and Canva will create a canvas at that exact size.

Custom sizes are useful for banners, signage, or any project with unusual proportions. Once you set the size, Canva treats it like any other document — you can add text, images, and shapes the same way.

What happens to your content when you resize

When you change document size, Canva does not delete your work. Instead, it tries to fit everything into the new space. If you make the canvas smaller, text and images scale down proportionally. If you make it larger, they stay the same size but may end up in unexpected positions.

You will almost always need to adjust things by hand after resizing. Click on individual elements — text boxes, photos, shapes — and drag them to where you want them. Use the alignment tools in the toolbar to center or distribute elements evenly if you have moved several things.

If a resize goes badly wrong, use Ctrl + Z (or Cmd + Z on Mac) to undo and try again. Canva keeps your full edit history, so you can step back as many times as you need.

Changing units from pixels to inches or centimeters

Canva defaults to pixels, which is standard for screen designs. But if you are designing for print, you may want to work in inches or centimeters instead. In Document settings, look for the unit selector next to the width and height fields — it usually shows "px" or "pixels".

Click it and choose inches, centimeters, or millimeters. Your document size will convert automatically. A 1080 × 1080 pixel Instagram post becomes roughly 11.25 × 11.25 inches at 96 pixels per inch (the standard screen resolution). This conversion is helpful if you are coordinating with a printer or following a brief that specifies dimensions in physical measurements.

You can switch units as many times as you want without changing the actual canvas size — it is just a display preference. If you change from pixels to inches and back, the dimensions stay the same.

Resizing without losing quality

Canva is a vector-based editor, which means it stores your text and shapes as mathematical instructions rather than as fixed pixels. When you resize, Canva recalculates those instructions for the new size, so text stays sharp and shapes stay smooth. You will not see the pixelation or blurriness that happens when you enlarge a photograph.

Images you have uploaded are different — they are raster files made of fixed pixels. If you make your canvas much larger than your original image, the image will look blurry or pixelated when you stretch it. To avoid this, use high-resolution images to begin with, or keep your canvas size close to the original image dimensions.

For social media and screen designs, 1080 pixels wide is a safe minimum. For print, ask your printer what resolution they need — usually 300 pixels per inch for good quality.

Frequently Asked Questions

Can I resize a design after I have already filled it with content?

Yes. Go to document settings and change the dimensions. Canva will reflow your content to fit the new size, though you will likely need to adjust text and image positions by hand. Use undo if the result does not look right.

What if I need a size that is not in Canva's presets?

Enter custom dimensions in the width and height fields in document settings. You can type any number and switch between pixels, inches, centimeters, and millimeters. Canva will create a canvas at that exact size.

Does resizing make my design blurry?

Text and shapes stay sharp because Canva uses vectors. Photographs may become blurry if you enlarge them significantly, since they are made of fixed pixels. Start with high-resolution images to avoid this problem.

Can I change the unit from pixels to inches?

Yes. In document settings, click the unit dropdown next to the width and height fields and select inches, centimeters, or millimeters. Your dimensions will convert automatically, and you can switch back to pixels anytime.

What happens if I resize to a much smaller size?

Your content scales down proportionally, but elements may overlap or become hard to read. You will need to manually reposition and resize individual text boxes and images to make them work in the smaller space.