LockPDF Alternatives

    LockPDF is described as 'free online tool to encrypt and lock PDF files. Password protect your PDF's with a strong encryption in just a few seconds'. There are more than 10 alternatives to LockPDF, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is PDFTK Builder, which is both free and Open Source. Other great sites and apps similar to LockPDF are QPDF (Free, Open Source), PDFEncrypt (Free, Open Source), PDF Architect (Freemium) and PyPDF2 (Free, Open Source).

    The list of alternatives was last updated Nov 18, 2019


    • Windows
    • Mac
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • BSD
    • iPad
    • PortableApps.com
    • Software as a Service (SaaS)


    • Pdf encryption
    • Combine PDF
    • Edit PDF
    • Sign PDF files
    • Digital rights management
    • Encryption
    • Split PDF files
    • Convert PDF to image
    • Convert PDF to Text
    • Convert PDF to Word document
    • PDF OCR
    • Pdf protection
    • Convert PDF to Excel document
    • OCR
    • Offline data access
    • Password protection
    • Portable
    • Reorder pages
    • Scan to PDF
    • Server Authentication


    • Free
    • Open Source
    • Paid
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    Showing 10 of 16 alternatives