Create a transparent image of given dimensions 

convert -size 100x100 xc:none transparency.png

July 31, 2013 — bashoneliners

Explanation

  • convert is a tool that's part of the ImageMagick image manipulation library
  • -size 100x100 specifies the dimensions of the image to create
  • xc:none is a symbolic source image, indicating to convert "from nothing"
  • transparency.png is the destination filename, the image format is automatically determined by the extension

Limitations

Requires the ImageMagick image manipulation library.

image-manipulation
convert