Nowadays your smartphone camera can stand in for a scanner and do fairly well if you can get the lighting right. And it should handle darn near any size document.

If you have an iPhone, they now have scanning built into the "Notes" app. Open a note, then hit the circled "+" button in the bottom middle, and then select "Scan document".

There are also many 3rd party apps that'll do this as well, on iOS or Android. After they take the photo, they correct for the perspective and the end result is pretty good.

Give it a whirl if you can, it's definitely better than nothing.