VeryPDF Encrypt PDF provides three versions to meet different needs of different users:
Encrypt PDF (GUI) for non-commercial users,
Encrypt PDF Command Line and Encrypt PDF COM for developers and server operators.
Want to add 256bit-AES, Digital Signature and Linearization to existing PDF files?
Encrypt PDF is a powerful and useful tool that can help you encrypt your PDF files. It can help you set open passwords for your PDF files, preventing the PDF files from opening or reading. You can also use this tool to set owner passwords, preventing your PDF files from printing, editing, coping, and changing. With Encrypt PDF, you don't need Adobe Acrobat, or any other Adobe products.
Supported Operating Systems
Support Microsoft Windows 98/ME/NT/2000/XP/2003/Vista/7/2008 of both 32-bit and 64-bit.
Features of Encrypt PDF (GUI)
Easy to Operate
- Easy to use.
- Support drag and drop.
- Do NOT need Adobe Acrobat software.
- Set permissions to all the PDF in your archive in batches.
Secure PDF with passwords
- Set open or user passwords to protect PDF from unauthorized opening.
- Set owner passwords to protect PDF from unauthorized editing, printing, and coping.
- Support 40-bit or 128-bit PDF encryption protection.
Protect your PDF from Unauthorized Use
- Prevent printing PDF by unauthorized users.
- Prevent copying text or graphics of PDF.
- Prevent changing or editing contents of PDF.
Features of Encrypt PDF Command Line
Encrypt PDF Command Line provides a regular console interface. It has all the features of Encrypt PDF (GUI). Besides, it has the following features:
- Provide a command line application.
- Support wildcards as the asterisk in the example: *.pdf.
- Simple to use it inside your CGI/ASP/PHP/etc. (Server Side)
Two Types of PDF Passwords
There two types of passwords you can apply to PDF files: owner/master password and user/open password.
Owner/master passwords can be used to protect PDF files from printing, editing, change, and copying. With an owner password, users can get full access to the PDF file. This means if printing was disabled, you need to use owner passwords to print the PDF files. The second type is the user/open password. If you want to read an open password protected PDF file, you need to have an open password.