PDF Encrypt software is a very flexible and powerful
program, it allows you to encrypt (using standard
40-bit or 128-bit or AES encryption) existing PDFs, set
permissions, add user and owner password. For example
you can encrypt a PDF without allowing to print it. The
button to print the file will be disabled in Acrobat
Reader application, you can also encrypt a PDF to allow
the user to read it only if he knows the correct password.

There two passwords you can apply to a PDF. The first
is the owner password. Opening a PDF with this password
will allow you full access to the PDF when a user
password has been assigned as well. This means that
even if printing was disabled you will still be able to
print the PDF when using this password. No password
will be prompted for when opening the PDF if you secure
it with only an owner password. The second is the user
password. Opening a PDF with this password will
restrict you based on how the PDF was password
protected (printing may be disabled, for instance).

PDF Encrypt Features

* Supports Adobe Standard 40-bit Encryption and
Adobe Advanced 128-bit Encryption.
* Supports AES encryption.
* Password protect opening of the document.
* Supports user password and owner password.
* Prevent printing of the document.
* Prevent copying of text/graphics.
* Prevent changes to the document.
* Supports add printing, copying and changing
permissions to an encrypted PDF file.
* It can simple to use like a batch application to
set permissions to every PDF in your archive.
* Set the document title, subject, author,
keywords, creator to the encrypted PDF file(s).
* Supports command line operation (for manual use
or inclusion in scripts).
* Batch operation on many files from command line
and windows version.
* Easy to use.
* Does NOT need Adobe Acrobat software.
* The speed of encryption is very fast.
* Supports PDF1.6 protocol (Acrobat 8.x).

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