What are some alternatives?
When comparing PDFTK Builder and A-PDF Restrictions Remover, you can also consider the following products
PDFsam - PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files
PDF Password Remover Tool - PDF Password Remover Tool. Free PDF password remover tool by PDF Technologies. Remove passwords from PDF documents.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Birdie PDF Security Remover - Remove PDF Printing, Copying, Modify and Editing restriction with PDF Security Remover. Unlock Owner Password PDF security in batch to open and edit locked PDF file.
PDF-Shuffler - PDF-Shuffler is a small python-gtk application, which helps the user to merge or split pdf...
4dots Free PDF Password Remover - 4dots Free PDF Password Remover can remove a password from a PDF file.