Create a large photo grid collage offline

I was wanting to make a simple large photo collage in grid form, after some quick Google searching, I found mainly online options, and who wants to upload 100+ photos.

I stumbled on the option of FastStone Image Viewer, I had used FastStone Image Viewer previously, moved onto FastStone MaxView, but didn’t realise it had the option.

The option is the Contact Sheet Builder, normally used for creating proof sheets, with the correct settings a grid collage can be produced.

Admittedly, this works best if all your images are the same size.

Lets say your images are 1024 by 768, first set up the sheet at four times this to produce a nice final resolution, so that would be 4096 by 3072. Since the sheet’s resolution is a multiple of the images, the images will cover the sheet completely.

Remove the sheet margins by setting them all to zero. Determine how many images to lay in the grid, a 12 by 12 grid would mean each image in the sheet is approximately 341 by 256. Alternatively, work out how many images you have to use, if I have 429 images the square root is 20.71. If I wanted to fit the most images in, I would produce a grid of 10 by 20.

Remove spacing between images, unless you want it.

Now, since the sheet’s resolution is a multiple of the images, a