A lot of people will find that the downloaded PDF documents can only been seen, can't directly print, duplicate content, edit content or convert to other formats. In fact most of the time, it is because of the PDF files were added password protection by the author. It would be a little trouble if you want to copy or modify the content. However, Vibosoft PDF Password Remover can help you unlock all password protection, you can easily make the PDF copyable, printable and editable by removing the owner password. Directly remove PDF password and restrictions without installing Adobe Acrobat. High-stability: batch remove passwords from hundreds of PDF files at a time. Remove restrictions on printing, editing, copying. Support 40-bit RC4, 128-bit RC4, 128-bit AES decryption.