choose paper source from pdf page size doesn't works anymore since last update
the option not change the paper size anymore on documents where it's ok before the update
Adminsubrato (Admin, Adobe) commented
Thank you for your patience and sorry for the inconvenience caused.
We have released an update for Acrobat and Reader DC(version 21.001.20138) that contains the fix.
Please try updating the application to the latest version. In the application, go to Help > Check for updates.
For more information about the latest version, please refer to this link: https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/continuous/dccontinuousfeb2021qfe....
Let us know how it goes.