Thanks it seems it works now :)

It seems OK now. Thank you :)
David

It seems just PDFs which were embeded by user who is no longer in user group with embed PDF permission didn't work.
I've just made new user group with embed PDF permission and all PDFs are now shown. It isn't the best solution, but now it's working :)
Thanks for figuring out what was the problem :)

No, it seems it's fixed now. Thank you for the help :)

Thanks :)

Sorry, my bad:
https://gfi.miraheze.org/

Thank you :)

Thanks for solving the problem. It works :)

Paladox: it affects all pages with <pdf> tag.
For example: https://gfi.miraheze.org/wiki/Detail_-_výkaz_pivničných_kobiek_BD_Fuxova

Hello, what should I do to make your fix working on our wiki? The extension isn't still updating. Now number of showing overall edits are even shrinking.
Thanks for help.

Thanks it works :)

Thanks for a quick responce Paladox.
It doesn't work yet. I don't know weather I've got it right but I suppose we are waiting for reviewing your patch.

Thanks Paladox.