A quick tutorial on using Imagemagick to remove a background colour from images. The image file format needs to support transparency e.g. PNG.

NOTE: JPG doesnt support transparency, so it would be necessary to convert the file.

There is also this method Imagemagick transparency I find the option below to be a bit more …

A quick tutorial on using Imagemagick to remove a background colour from images. The image file format needs to support transparency e.g. PNG.

NOTE: JPG doesnt support transparency, so it would be necessary to convert the file.

Remove background color

1. Set the input file

1input="old-white.png"

2. Set the output …

A quick tutorial on using Imagemagick to add a background shadow to images. For the best result, ensure the original image has a transparent background. It is also useful to observe consistent sizes for the images.

Add a shadow

1. Set the name of the input image - for example

1input="old.png"

2. Set the name of …

A quick tutorial on using Imagemagick to resize images. Imagemagick provides a couple of options that are worth considering.

• Resize with constraints (i.e. maintain the aspect ratio)
• Resize without constraints

Intelligent Resize

1. Resize an image and adhere to the aspect ratio of the original image

1convert old.png …