---
title: "Canvas"
description: "Canvas"
url: "https://www.contentstack.com/docs/developers/sdks/content-delivery-sdk/swift/reference/canvas"
product: "Contentstack"
doc_type: "guide"
audience:
  - developers
  - admins
version: "current"
last_updated: "2026-09-06"
---

# Canvas

## Canvas

The canvas parameter allows you to increase the size of the canvas that surrounds an image.

Crop by width and height.

Crop by aspect ratio.

Crop sub region.

Crop and offset.

## Canvas | Swift Delivery SDK | Contentstack

Canvas lets you increase the size of the canvas surrounding an image using the canvas parameter.