Hi Wolfgang and Julius,

This is indeed an issue, but can be fixed rather easily.  I recently made a blog post [1] that goes into deeper details into how and why, but below is a short answer.

The package python3-pypdf2 has been superseded by python3-pypdf (confusing, I know).  Fortunately, it is rather easy to fix this by yourself.

First we need to extract the Debian package to a new folder (change the filenames accordingly):

dpkg-deb --raw-extract odoo_19.0.20251014_all.deb odoo_19.0.20251014_all_custom

We now change the package dependency with a Perl one-liner (again, change the filename if necessary):

perl -pi -e 's/(python3-pypdf)2/$1/' odoo_19.0.20251014_all_custom/DEBIAN/control

It is time to repackage the custom folder into a new Debian package:

dpkg-deb -b odoo_19.0.20251014_all_custom odoo_19.0.20251014_all_custom.deb

Now you can install the new, custom Debian package of Odoo as root or another user with elevated permissions.  Enjoy!

P.S.: don't forget to also install wkhtmltox (the Bookworm version works on Trixie).

wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6.1-3/wkhtmltox_0.12.6.1-3.bookworm_amd64.deb
sudo dpkg -i wkhtmltox_0.12.6.1-3.bookworm_amd64.deb

[1] https://consulting.go-han.net/posts/1760547257283-fix-odoo-package-dependency-on-python3-pypdf2/