> Am 22.09.2020 um 16:35 schrieb Henning Hraban Ramm <texml at fiee.net>: > Did you try veraPDF? > https://openpreservation.org/products/verapdf/ Here you can download it without registration: https://github.com/veraPDF/veraPDF-apps i.e. http://downloads.verapdf.org/rel/verapdf-installer.zip (Java required) Hraban