Work · alternatives · 2026

24 alternatives to Lock PDF

Password protect and encrypt your PDF online

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Lock PDF launched in 2018; newer entries below may have overtaken it.

1. 1
   Encrypt PDF▲77

   Encrypt/password protect PDF for free

   2023 · onepdf.online · its alternatives →

2. 2
   Unlock PDF▲80

   Remove password from PDFs in an easy & fast way

   2023 · onepdf.online · its alternatives →

3. 3
   PDF Protector - Unlock, Lock PDF▲9

   Secure, remove, edit PDF security password

   2025 · apps.apple.com · its alternatives →

4. 4
   Aryson PDF Unlocker▲66

   Best tool to unlock the encrypted PDF files effectively

   2022 · arysontechnologies.com · its alternatives →

5. 5
   SysTools PDF Locker to Lock PDF Files▲6

   PDF Locker Tool to Lock PDF With Password and Permission

   2025 · appsource.microsoft.com · its alternatives →

6. 6
   PDF Decryptor▲78

   Create password-less copies of protected PDFs for free

   2022 · pdfdecryptor.vercel.app · its alternatives →

7. 7
   SecurePDF▲5

   Browser-based pdf encryption and password protection

   2025 · securepdf.io · its alternatives →

8. 8
   UnlockPDFNow▲3

   Unlock secured PDFs in your browser—Private & Ad-free.

   Feb 2026 · unlockpdfnow.com · its alternatives →

9. 9
   PDF Unlocker Online▲4

   unlock pdf, decrypt pdf, online, free, pdf restrictions

   2021 · pdfzilla.com · its alternatives →

10. 10
    DRS Softech PDF Password Protection Tool▲7

    A safe way to secure PDF without worryingthe file integrity.

    2025 · data-recovery-solutions.com · its alternatives →

11. 11
    PDF Encryption Tool▲2

    Allows users to securely Lock, Protect or Encrypt PDF Files

    2022 · convertertools.org · its alternatives →

12. 12
    PDFUnlock▲2

    Remove PDF passwords - free, private, runs in your browser

    Aug 2026 · pdfunlock.tech · its alternatives →

13. 13
    Free PDF Unlock▲3

    Free tool to remove PDF restrictions from your files

    Jun 2026 · freepdfunlock.com · its alternatives →

14. 14
    Appnimi PDF Password Kit▲7

    Tool to lock or unlock a zip file with a password.

    2022 · apps.apple.com · its alternatives →

15. 15
    SafeNotes▲71

    Securely annotate and store your PDF documents

    2019 · its alternatives →

16. 16
    Batch PDF Encryptor▲2

    batch pdf encryptor, pdf encrypt, protect pdf, pdf encrytion

    2023 · pdfzilla.com · its alternatives →

17. 17
    aJoysoft PDF Password Remover▲10

    One-click PDF decryption tool to unlock all restrictions

    2021 · ajoysoft.com · its alternatives →

18. 18
    PDF Security Pro Edition▲2

    PDF Security Pro Edition encrypts your PDF files

    2019 · apps.apple.com · its alternatives →

19. 19
    GuardPDF▲11

    Privacy-first pdf tools – 100% local processing

    Oct 2025 · guardpdf.com · its alternatives →

20. 20
    CubexSoft PDF Unlocker▲1

    Remarkable Solution to Unlock PDF files in Batch

    2023 · cubexsoft.com · its alternatives →

21. 21
    SysTools PDF Unlocker▲2

    Unlock restricted PDF files without needing password

    2022 · systoolsgroup.com · its alternatives →

22. 22PU
    PDF Unlock – Batch PDF Password Remover▲5

    2017 · uconomix.com · its alternatives →

23. 23
    RizzPDF

    Unlock PDF passwords instantly — 100% private, in-browser

    Mar 2026 · rizzpdf.com · its alternatives →

24. 24
    SafePDF▲1

    Protect, Seal and Encrypt your PDF files in seconds

    Feb 2026 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →