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)

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

iSafePDF is a free open source PDF protection software.

PyPDF2 - A utility to read and write pdfs with Python

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

PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files

open-source

PDF-Shuffler is a small python-gtk application, which helps the user to merge or split pdf...

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

PDF Password Recover provides you the solution of PDF Password Recovery.

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

paid Free Trial

PoDoFoBrowser is a graphical browser and editor for the object structure of PDF files.

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