Hello, i use Odoo V9 and when i would print on PDF any document, all the company informations are missing.
It is the same for the CSS with the Odoo template.
in the log i have this info twice each time: (perhaps not related to the fact to not have any company informations on invoice)
INFO db_test openerp.addons.base.ir.ir_qweb: 'o.partner_id.lang' is not a valid language code, is an empty field or is not installed, falling back to en_US
All is defined on the company, the logo, the personnal footer line, the paper size, and so on. All is printed on the PDF, the invoices lines, the customer's informations, the taxes, total due, and so on.
But with no CSS at all, no company header, and no footer.
My Odoo release is the: 9.0.20151117 (from debian repo of openerp for debian jessie 64b)
My WkHtmlToPdf release is the: 0.12.2.1 (with patched qt)
If someone have an idea i'll read it carrefully :) thanks by advance for your help :)