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To download PDF Security from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

PDF Security

By Gerald Ni

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PDF Security offers a convenient and secure solution for keeping your PDF document safe. So that you can reduce the risk of distributing confidential and sensitive information, such as financial or legal documents, personal resume etc.

PDF Security can keep PDF safe by protecting PDF documents from unauthorized:
* Opening and viewing;
* Content copying;
* Printing out;
* Page extraction;

Besides, you can modify the document description (metadata), such as author, subject, title and keywords.

Simple and clear, all the settings are right there in the user-friendly interface.

*Support multiple processing of PDF files.

*Complete control over PDF document usage
-Prevent opening and viewing PDF without entering the correct open password.
-Prevent document printing without the correct owner password.
-Prevent copying or otherwise extracting text or graphics from the documents.

*High level encryption
Higher secure level by 128 bit encryption algorithm, which is hard to be crack.

Note: Please be sure to make a note of the password, in case you need it to change the security settings in the future.

Owner password can also open the PDF document, even when the open password is set.

Your Mac App Store review matters!
If you enjoy our apps, please leave a review or rate the applicaion on the Mac App Store! Thanks for helping us keeping the updates for new features!

**Get more easy-to-use PDF apps on the Mac App Store:
PDF Converter Master: Convert PDF to Word, PowerPoint and more. 50% OFF
PDF to Word - PDF Converter : Top 10 paid app in Business Category.
PDF to PowerPoint Converter : Convert PDF to PowerPoint Presentation.
PDF Creator Master : Batch convert images and plain text files to PDF.

If you have any feedback or questions, we'd love to hear from you! Lighten PDF Software offers free tech support: you can reach us by email at Thanks.


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Customer Reviews

PDF Security CRASHES Mail 6.5 on Mac OS 10.8.4

While the software does what it says, it crashes Mail 6.5 ran by Mac OS 10.8.4. Specifically, any email file that contains a SECURED, password-protected PDF file prepared by PDF Security cannot be opened on the automatic viewer in Mail, which happens every time you simply click once on your email. If you click twice to open the email on a new window, you CAN see the contents of the email itself that otherwise appear BLANK on the automatic viewer. Furthermore, the process is like a virus: it begins to extend and propagate to ALL emails you have and you will eventually not be able to see their content in the automatic viewer AND will crash your Mail 6.5 AND your operating system.

I spent hours with Apple Tech support sorting this out. PLEASE FIX THIS! The only solution to avoid this right now is to have to delete the email you send or receive containing the Secured PDF file created by this defective software. This is not an option when you wish to keep record of important emails (thus SECURED)!

By the way, if someone replies to your email containing the secured PDF file, and returns that file back to you, it will also crash Mail 6.4 and your OS 10.8.4. Please send out an update fixing this issue ASAP!

Function built into Preview-- except for batch mode..

Originally when I tested this out - it didn't appear to do anything one couldn't accomplish by simply printing to PDF (from Preview) and clicking on the "Security Options" button in the output dialog… but then it dawned on me, in that more and more I am putting stuff in the "cloud" - it would be nice to simply take the PDFs I already have, and in batch mode, encrypt them quickly rather than printing out each in Preview… that is where this application comes in real handy. Now I can take my financial receipts (even scanned ones) and quickly encrypt them for archiving.. Seems to work pretty quickly..

Great job

thanks for this useful free app, I have your paid app and I really like your apps, great job.

PDF Security
View in Mac App Store
  • $4.99
  • Category: Business
  • Released:
  • Version: 1.2.0
  • Size: 1.9 MB
  • Language: English
  • Seller:

Compatibility: OS X 10.6 or later, 64-bit processor

Customer Ratings

Current Version: