LockPDF Alternatives

PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use.

PDFTools

As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

Try for free paid Free Trial $15.0 / Monthly (125+ Documents)

Use Ghostscript GSview to open PDF files with owner password restrictions.

QPDF is a command-line program that does structural, content-preserving transformations on PDF...

Open Source

iSafePDF is a free open source PDF protection software.

PyPDF2 - A utility to read and write pdfs with Python

iRock PDFPasswordRemover is a professional PDF decrypter with quickly removing owner PDF password...

Locklizard Safeguard PDF Security provides total PDF DRM protection and control over your documents...

paid Free Trial

For 9.99 $ A-PDF Restrictions Remover is extremely easy to use.

Stellar Phoenix PDF Recovery repairs corrupt or damaged PDF files and restores forms...

PDF Unlocker is a simple and useful application that will remove the password and restrictions on any PDF file that you can read. There ar...

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 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.