DocumentationFastly Image Optimizer
The Fastly Image Optimizer is a real-time image manipulation and optimization service that drastically speeds up image delivery by serving pixel perfect, bandwidth efficient images to internet users, whatever device they are using.
Image API reference
| Name | Parameter | Notes |
|---|---|---|
| Width | width |
Resize the width of the image. |
| Height | height |
Resize the height of the image. |
| Pixel Ratio | dpr |
Serve correctly sized images for devices that expose a device pixel ratio. |
| Fit Mode | fit |
Set how the image will fit within the size bounds provided. |
| Crop | crop |
Remove pixels from an image. |
| Trim | trim |
Remove pixels from the edge of an image. |
| Pad | pad |
Add pixels to the edge of an image. |
| Canvas | canvas |
Increase the size of the canvas around an image. |
| Background Color | bg-color |
Set the background color of an image. |
| Orientation | orient |
Change the cardinal orientation of the image. |
| Overlay | overlay |
Overlay one image on top of another image. |
| Overlay Align | overlay-align |
Set the position of the overlay image. |
| Overlay Repeat | overlay-repeat |
Set how the overlay image will be repeated. |
| Overlay Width | overlay-width |
Set the width of the overlay image. |
| Overlay Height | overlay-height |
Set the height of the overlay image. |
| Overlay Pad | overlay-pad |
Add padding to the edge of the overlay image. |
| Brightness | brightness |
Set the brightness of the output image. |
| Contrast | contrast |
Set the contrast of the output image. |
| Saturation | saturation |
Set the saturation of the output image. |
| Sharpen | sharpen |
Set the sharpness of the output image. |
| Blur | blur |
Set the blurriness of the output image. |
| Format | format |
Specify the output format to convert the image to. |
| Frame | frame |
Extract the first frame from an animated image sequence. |
| Quality | quality |
Optimize the image to the given compression level for lossy file formatted images. |
| Auto | auto |
Enable optimizations features automatically. |
| Enable | enable |
Enable functionality that is disabled by default. |
| Disable | disable |
Disable functionality that is enabled by default. |
| Resize Filter | resize-filter |
Specify the resize filter used when resizing images. |
| Montage | see docs | Combine up to four images into a single displayed image. |