wkhtmltopdf_binary_gem
Extracting binaries
Hints for extracting binaries from https://wkhtmltopdf.org/downloads.html (dpkg and rpm2cpio is available on Homebrew).
Debian/Ubuntu
dpkg -x wkhtmltox_0.12.5-1.trusty_amd64.deb .
CentOS
rpm2cpio wkhtmltox-0.12.5-1.centos7.x86_64.rpm | cpio -idmv
macOS
xar -xf wkhtmltox-0.12.5-1.macos-cocoa.pkg
cat Payload | gunzip -dc | cpio -i
Compression
Binaries should be compressed with gzip --best after extracting. The matching binary will be extracted on first
execution of bin/wkhtmltopdf.
Testing with Docker
Make sure you have Docker and Docker Compose installed (see https://docs.docker.com/compose/install/ for more information).
There are Dockerfiles for the supported Linux based distributions under .docker. You can build them all with
docker-compose build and run each individually with e.g. docker-compose run ubuntu_18.04.
There also is a rudimentary minitest test that simply invokes docker-compose run for each distribution and
expects to see the output of wkhtmltopdf --version. Just run rake to run it.
You can clean up after testing with docker-compose down --rmi all.