# Fit
Resizes the image to fit into a specified **width** and **height** box, adds padding (image or solid color) to keep proportions, and delivers the resulting image via CDN.
**func=fit**
{% hint style="info" %}
Please note that by default, smaller images will not be upscaled to fit the box. If you want to enable this behavior, you need to use **fit\_enlarge=1**. along with **func=fit**.
{% endhint %}
The padding can be customized using the following additional operations:
| Operation | Syntax | Description |
|---|
| gravity | gravity=X
X=[north|south][east|west] | sets the position of the image in the fit box |
| margin | margin=X | defines a minimum margin when fitting the image in the new canvas |
| solid background | bg_color=X | bg_colour=X
X={hex color}|auto | defines a background color with a hex code, color name or automatically, based on the image palette |
| blurred background | bg_img_fit=1 | sets blurred image background |
| bg_blur=X | applies Gaussian blur to the background image |
| bg_opacity=X
X=0..1 | specifies background image opacity |
| bg_colorize=X | bg_colourise=X | defines a color to tint the background image |
| bg_gravity=X
X=[north|south][east|west] | defines the positioning of the background image within its container |
| image upscaling | fit_enlarge=1 | allows upscaling smaller images to the desired dimensions (will result in inferior image resolution) |
## Gravity
| **northwest** | **north** | **northeast** |
| ------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- | ------------------------------------------------ |
| **west** | **center** \| **centre** (default) | **east** |
| **southwest** | **south** | **southeast** |
| **trim** - [more info](/transformations/image-operations/trim.md#trim-gravity) | | |
When using **`func=fit`** along with (**`trim=X)`**, you can set **`gravity=trim`**. This way, upon a successful trim, the gravity will be resolved to a compass position so that the canvas will not be extended on the non-trimmed edges.
## Margin
**margin=X**
If only one value is provided (**`margin=X`**), this sets the same minimum margin for all four edges. When two values are provided (**`margin=V,H`**), this sets the vertical (top and bottom) and horizontal (left and right) margins. If four values are listed (**`margin=N,E,S,W`**), they refer to the four image edges - north (top), east (right), south (bottom) and west (left).
By default, the margin is defined in pixels and applied before resizing. Alternatively, you can also use percentages (eg. **`margin=5p`**) of the destination size or absolute values in pixels (**`margin=100a`**) to define the margins.
{% hint style="info" %}
When using a margin alongside **`trim=X`** and **`gravity=trim`**, if a successful trim is performed, the margins on the non-trimmed side is removed. For more details, see the [Trim](/transformations/image-operations/trim.md) operation.
{% endhint %}
## Examples
| Preview | Syntax |
| ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
|  | Solid background:
/samples.scaleflex.com/hotel.jpg?w=400&h=245&func=fit&bg\_color=000
|
|  | Automatic solid background:
/samples.scaleflex.com/frog.png?func=fit&w=400&h=220&bg\_colour=auto
|
|  | Blurred background:
/samples.scaleflex.com/car1.jpg?w=400&h=320&func=fit&bg\_img\_fit=1&bg\_opacity=0.75
|
|  | Blurred background, tinted:
/samples.scaleflex.com/boat.jpg?func=fit&w=400&h=330&bg\_img\_fit=1&bg\_opacity=0.5&bg\_colorize=red
|
| 
| Align Background image to right (east gravity):
/samples.scaleflex.com/classroom.jpg?func=fit&width=600&height=600&q=70&bg\_img\_fit=1&bg\_blur=15&bg\_gravity=east&bg\_colorize=lc000000&bg\_opacity=0.5
|
| 
| Align Background image to left (west gravity):
/samples.scaleflex.com/classroom.jpg?func=fit&width=600&height=600&q=70&bg\_img\_fit=1&bg\_blur=15&bg\_gravity=west&bg\_colorize=lc000000&bg\_opacity=0.5
|
| 
| No upscaling of smaller images (default):
/samples.scaleflex.com/castle\_doc.jpg?w=600&h=245&func=fit&bg\_color=113650
|
| 
| Upscaling allowed:
/samples.scaleflex.com/castle\_doc.jpg?w=600&h=245&func=fit&bg\_color=113650&fit\_enlarge=1
|
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.cloudimage.io/transformations/image-operations/fit.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
