How to Resize Images by Pixel Dimensions in Canva

Canva can output an image at a specific width and height in pixels, but it doesn't resize the original file directly. It places your image on a design of the size you choose and exports that design as a new file. This guide covers both common approaches: starting a custom-size design, and resizing an existing design. It also explains how to confirm the exported file has the dimensions you need.

Before you start

• Know the exact target size in pixels, for example the width and height required by a profile photo, thumbnail or upload form.
• Work out whether the target has the same aspect ratio as your source image. If it doesn't, you will need to crop, add empty space, or accept some stretching.
• Have the source image saved locally in a common file format such as JPG or PNG.
• Sign in to a Canva account in the web app, the desktop app or the mobile app.

Canva is an online service, not a local editor. Your image is uploaded to your Canva account and processed there. If the image is private or sensitive, check Canva's current privacy terms and your account or workspace settings before you upload it. Don't assume an upload is temporary or automatically deleted.

Some features depend on your plan. In particular, resizing an existing design and some download options have been limited to paid plans. If an option described here is locked or missing, check your plan in your account rather than assuming the feature doesn't exist.

Step-by-step instructions

Method 1: Create a design with custom pixel dimensions

This method works without resizing an existing design, so it is the usual route on a free account.

• 1. On the Canva home screen, start a new design and choose the custom size option.
• 2. Set the unit to pixels (px). The unit selector may default to inches, millimetres or centimetres.
• 3. Enter the width and height you need, then create the design.
• 4. Upload your image and add it to the blank page.
• 5. Make the image fill the page. You can drag its corner handles, or use an option such as setting the image as the background if your version offers it. Corner handles scale the image proportionally. Any area that doesn't match the page's aspect ratio is either cropped or left empty.
• 6. If the image doesn't cover the whole page, decide how to fill the gap. You can enlarge and crop the image, or set a background colour for the empty space.
• 7. Open the download or share menu, choose a file format and download the file.

Method 2: Resize an existing design

If your image is already in a Canva design, look for the Resize option in the editor toolbar. Depending on your Canva version, it may be grouped with Magic Switch. Choose a custom size, set the unit to pixels and enter the new width and height.

If you're offered a choice, create a resized copy instead of changing the original design. That keeps the step reversible. After resizing, check the image placement again, because elements may not be repositioned the way you expect when the aspect ratio changes.

Download settings that affect the result

• File format: PNG keeps sharp edges and can store transparency. JPG usually produces a smaller file but uses lossy compression and can't store transparency.
• Size multiplier: if the download dialog includes a size or scale control, keep it at the original value. Otherwise the export won't match the pixel dimensions you set.
• Quality or compression: if a quality control is available for JPG, lower values reduce file size and increase visible artifacts.
• Transparent background: this applies only to PNG and may require a paid plan. A JPG export always fills transparent areas.

Check the output

Don't rely on the size shown in the Canva editor. Open the downloaded file's properties in your operating system or an image viewer and read its pixel dimensions. They should match the width and height you entered.

• Dimensions: width and height match the target exactly. If they are a multiple of the target, a size multiplier was applied during download.
• Aspect ratio: faces, text and circles don't look stretched or squashed.
• Sharpness: if the target is larger than the source image, Canva enlarges the pixels you already have and can't add real detail. The result may look soft.
• Edges and transparency: if you needed a transparent background, check that the file is a PNG and that the background is actually transparent, not white.
• File size: if the file is too large for an upload limit, try JPG or a lower quality setting. Then check the image again for visible compression artifacts.

Common problems and next steps

The Resize option is locked. Resizing an existing design may require a paid plan. Use Method 1 instead: create a new custom-size design and place the image on it.

The exported file has the wrong dimensions. Check that the design unit was set to pixels, not inches or millimetres. Then check that no size multiplier was used in the download dialog. Re-download after correcting either setting.

A dimension is rejected or changed automatically. Canva enforces minimum and maximum design sizes. If a value is refused, read the limit shown in the size dialog, or check Canva's help pages for the current limits.

There are white or coloured bars around the image. The image's aspect ratio doesn't match the page. Enlarge the image until it covers the page and accept some cropping. Alternatively, choose target dimensions that keep the source aspect ratio.

The background is no longer transparent. You either exported as JPG or didn't enable the transparent background option for PNG. That option may not be available on every plan.

The image looks blurry or blocky. The source is probably smaller than the target, or JPG compression is too strong. Start from a higher-resolution original, or export as PNG to avoid lossy compression.

The mobile app looks different. Menu layout and option names can differ between the mobile app, the desktop app and the browser. Look for the same functions: custom size, upload, download format and download size. Don't expect identical button positions.