What are some alternatives?
When comparing Birdie PDF Security Remover and Aryson PDF Unlocker, you can also consider the following products
SysTools PDF Unlocker - PDF Unlocker software allows users to remove restrictions from PDF documents. Unlock PDF for copy, print, edit, sign, comment, etc., On any Windows & Mac OS. Also, remove known user-level password & owner level password security from PDF files.
PDF Password Remover Tool - PDF Password Remover Tool. Free PDF password remover tool by PDF Technologies. Remove passwords from PDF documents.
iSafePDF - iSafePDF is a free open source PDF protection software.
Recover PDF Password - Recover PDF Password for Mac recovers forgotten passwords to PDF and unlocks PDF documents.
Stellar Phoenix PDF Recovery - Stellar Phoenix PDF Recovery repairs corrupt or damaged PDF files and restores forms...
A-PDF Restrictions Remover - For 9.99 $ A-PDF Restrictions Remover is extremely easy to use.