Convert, resize, or watermark images

We can resize, crop, and (auto-)rotate images, as well as watermark them.

The /image/resize Robot resizes, crops, changes colorization, rotation, and applies text and watermarks to images.

What can I do with this?

Our /image/resize Robot can be used in combination with other Robots, to create powerful workflows unique to your use case. For inspiration, here are example scenarios, with explanations and code for all platforms, that you can also try live on our website:

Add a sepia effect to an image

Our /image/resize Robot allows you to add effects to an image. In this example, we add...

Apply a text watermark to images

The /image/resize Robot offers numerous parameters to add custom text onto an image. Here's a quick...

Convert an image to WebP

Our /image/resize Robot allows you to quickly convert uploaded images to the WebP format.

Crop a picture to Twitter cover dimensions

Our /image/resize Robot allows you to quickly generate different sizes for uploaded images. In this demo,...

Remove a color around the edges of an image

The /image/resize Robot offers a powerful trim_whitespace parameter. If set to true this parameter removes any...

Resize an image to 75×75 pixels

Our /image/resize Robot allows you to quickly generate thumbnails from uploaded images. In this demo, it...

Resize and apply transparency, based on a clipping path inside an image

This demo showcases how to resize images and apply transparency, based on a clipping path inside...

And many more:

• Apply a watermark to images
• Avoid zooming small images when resizing
• Change the quality of a JPEG
• Convert an image from JPG to PNG
• Crop a picture to fit a Facebook profile picture
• Crop a picture to fit the background dimensions of the Apple iPhone 11 Pro Max while keeping the file size low
• Crop an image based on cropping coordinates
• Properly preserve transparency across image types
• Rotate uploaded images

Docs

This Robot supports parameters such as format, width, height, resize_strategy, zoom and 42 more to influence its behavior. Read all about the technical details in its docs.

Blog posts

We wrote the following posts about the /image/resize Robot on our blog:

• Ghostscript security incident (VU#332928) August 30, 2018
• Accidental breaking change for the crop resize strategy June 6, 2018
• Launching a new version of ImageMagick July 20, 2017
• A word on ImageTragick (CVE-2016–3714) May 4, 2016
• Performance Upgrades March 4, 2015
• Kicking Transloadit Into Gear for the New Year February 1, 2015
• On Upgrades & Goodbyes August 8, 2014
• We Have Added Support for SVG Images March 23, 2013
• Adding Support for Image Interlacing December 11, 2012
• Adding Support for Image Blurring October 21, 2012
• New Resize Strategy `fillcrop` Available February 14, 2012
• Adding Support for Audio Encoding November 21, 2011
• New `frame` Parameter for the /image/resize Robot May 26, 2011
• Adding More Options to Our Image Resize Robot May 9, 2011
• Now Offering Support for Image Rotation April 1, 2011
• Adding Support for Cropping by Coordinates January 31, 2011
• Is Your Image Scaling Software Up To Scratch? October 15, 2010

Pricing

Transloadit is a SaaS with a subscription model.

Our /image/resize Robot counts towards your Plan's data at a normal rate. Assuming an average input image of 0.8MB and an output of 0.48MB, here's what it would approximately cost to convert images per Plan:

Just like with your mobile plan, pricing goes down when you commit to larger monthly volumes. When you reach your plan's limit, we'll continue to service you, but remind you to upgrade to more cost-efficient plans. This is unless you explicitly set budgets. You can change plans at any time. More info and available plans on our Pricing page.

Don’t just take our word for it