This repository contains the Windows (MSVC 2013) 64-bit binaries from the wkhtmltopdf project. More about the functionality of wkhtmltopdf and wkthmltoimage can be found there.
Hint: The version of the binary is equal to the git tag. To install the latest version, use '0.12.2.1'.
In case this package does not work on your system, try installing the matching system packages from here: http://wkhtmltopdf.org/downloads.html.
This package can be found on Packagist and installed with Composer.
And for amd64 with:
php composer.phar require mmeuser/wkhtmltopdf-amd64-win "0.12.2.1"
The binary will then be located at:
vendor/mmeuser/wkhtmltopdf-i386/bin/wkhtmltopdf-i386