To correctly generate reports, the recommended version of the wkhtmltopdf
utility needs to be installed. It's name stands for Webkit HTML to PDF. Odoo uses it to convert a rendered HTML page into a PDF document.
Some versions of the wkhtmltopdf
library are known to have issues, such as not printing page headers and footers, so we need to be picky about the version to use. Since Odoo 9.0, the officially recommended version to use has been 0.12.1, and this is still true for Odoo 11.0. Version 0.12.2 is known to have some issues, and later versions are also reported to not work correctly in some cases.
Note
The official Odoo project keeps a wiki page with information and recommendations about wkthtmltopdf
usage. It can be found at: https://github.com/odoo/odoo/wiki/Wkhtmltopdf.
Unfortunately, the odds are that the packaged version provided for your host system, Debian/Ubuntu or any other, is not adequate. So, we should download and install the package recommended for our...