Preciso de uma senha nova para abrir meus pdfs
To create new to open your PDFs you need to follow the same steps as to create a password to an unprotected PDF, because protection cannot be removed on the mobile reader app.
However, you can remove protection from the Acrobat DC desktop app and create a new password.
you can refer to the article below to remove protection:
Let us know if that helps.
Thanks for confirming that this issue is resolved.