Make several PNGs into one ICO file [closed]

Question

With Windows ICO files, you can pack several different sized images into the same ICO file - Windows then picks different sizes based on what it needs. (see here for info about icon sizes)

There are lots of free online tools that take a singe image and make it into an ICO file, but are there any free online tools that take several images and make them into one ICO file?

Answer 1

Turns out you can also do this with Gimp, as described here:

• Open the largest of the icon images in The GIMP. Right-click on the image and select File->Open as Layers... and select all the other icon images.
• This will create a single image with a layer containing each of the other icon images.
• Save the image as a Microsoft Windows Icon (.ico) image - File->Export (or File->Save As in older versions of GIMP), and then type in the filename, e.g. favicon.ico. (this will automatically select the .ico format)

Answer 2

ICOBundle - Free Program from Telegraphics http://www.telegraphics.com.au/sw/product/ICOBundle

you first create icon files in the required sizes and then combine it with ICOBundle. For the creation of the icon files i use the photoshop plugin http://www.telegraphics.com.au/sw/product/ICOFormat

it is a command line utility but the usage is quite simple

icobundl.exe -o favicon.ico favicon16x16.ico favicon32x32.ico