Show HN: PrintBig, local full scale template printing

I recently was working on an art project in which I needed a full scale print out of a design I had made for cutting out on the bandsaw. To my shock and horror, it seemed there was no way to print large images across many pages at precise scales on MacOS (Acrobat did it up until 10.15, then Apple removed some utility and broke this).

On Windows, the native Print application does an alright job, and tools like [BigPrint](https://woodgears.ca/bigprint/) (the inspiration for this project) work great.

So I made this, it both splits up the image into component pages (the tile sizes are configurable, and presets for A4 and Letter are available), and applies a two-phase grid to the image which makes aligning the printed pages a breeze.

Enjoy!