How to Encrypt a PDF? Here're 6 PDF Encryption Tools!
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17 May 2021 Senior Product Manager
Summary
Encrypting PDF files can not only protect the files from being easily edited, but also prevent the important information from being copied. Now, many PDF tools can add password to the files. How to encrypt a PDF well? Let’s learn about these PDF encryption tools!
A useful PDF encryption tool can not only add password to the PDF files, but also offer different encryption options. For example, it can restrict the PDF files not to be edited, printed, or copied. These functions can make our PDF files safer. What’s more, some PDF tools can edit files and convert formats. In the followings, we will show you how to encrypt a PDF file with these tools.
Renee PDF Aide is the useful and powerful PDF software. It offers many functions, such as editing, encrypting as well as converting PDF. Next, we will show you more details about the software.
What is Renee PDF Aide?
Renee PDF Aide is the software that supports to edit PDF and convert PDF. With utilization of the advanced OCR (Optical Character Recognition) technology, it can convert PDF to Word/Excel/PowerPoint/Image/HTML/TXT and the other common formats. You can designate the specific pages to be converted at the speed of 80 pages/min. Besides, it can repair the damaged PDF files, compress PDF files to shorten the loading time, merge several files into one and rotate the file position. En/decryption and watermark are allowed to add for PDF files, too.
What’s more, Renee PDF Aide supports English/French/German/Spanish/Portuguese/Chinese/Korean/Japanese. Under the mode of OCR, it can greatly improve the accuracy of character recognition. Even though you are a new user, you can use this software easily.
Renee PDF Aide - Powerful PDF Editing Tool
Easy to use Friendly to computer beginners
Multifunctional Encrypt/decrypt/split/merge/add watermark
Safe Protect PDF with AES256 algorithms
Quick Edit/convert dozens of PDF files in batch
Compatible Convert PDF to Excel/PowerPoint/Text, etc.
Easy Use with simple steps
Functional Encrypt/decrypt/split/merge/watermark
Safe Protect PDF with AES256 algorithms
② How to encrypt a PDF with Renee PDF Aide?
Renee PDF Aide provides two modules, [PDF Tools] and [Convert PDF]. First, we will show you how to encrypt PDF with the former module.
Steps:
Step 1: Download and install Renee PDF Aide. Open the software and get into [PDF Tools].
Step 2: Then, click on [Add Files] to select one or more PDF files.
Instruction of each tool:
Repair: Fix the broken PDF file or the file that cannot be opened
Optimize: Compress large PDF file
Split: Split a PDF file into small files
Merge: Merge several PDF files into one, or merge the selected pages
Rotate: Adjust a PDF file at different angles
En/Decrypt: Lock and unlock PDF files
Watermark: Add overlay watermark or background to PDF files
Watermark: Add overlay watermark or background to PDF files
Image→PDF: Convert one or more images into PDF file(s)
Step 3: Select the [En/Decrypt] at the top menu. Next, choose [Encrypt PDF files] and set a password. After that, check the options to disable the limitations, such as printing, modification, text/image extraction, comment, form filling and sign.Finally, click on [Convert] to encrypt PDF.
These are the steps about how to encrypt a PDF file with Renee PDF Aide. Next, we will show you how to convert PDF, too.
How to convert PDF?
Renee PDF Aide can convert PDF to Word/Excel/PowerPoint/Image/HTML/TXT. Here are the steps.
Step 1: Download and install Renee PDF Aide. Then, get into [Convert PDF].
Step 2: Select one of the output formats at the top menu. Then, click on [Add Files] to select the target PDF file. Next, check the option [Enable OCR] to improve the character recognition.
TipsAbout the OCR function:
The OCR function can improve text recognition in two ways:
A. Recognize words on image and PDF. You can use this function to improve text recognition when you are going to convert the image-based PDF and the scanned PDF.
B. Recognize the font style to avoid garbled codes when there are different embedded font styles on the PDF file.
Step 3: Finally, click on [Convert] to convert the format.
PDF Suite is the multifunctional PDF editor. It can open, view, mark, edit, convert and encrypt PDF files. The interface is also clear and friendly to users. You can add password without digit limitation. Besides, you can have a free trial version and have no need to spend much money for the paid version.
Foxit PDF Security Suite protects PDF on Windows desktops in Active Directory Rights Management Services. It can not only encrypt PDF file, but also view, edit and manage PDF files. The built-in security system is safe enough to protect the company files. But for individuals, the software may not be fully used.
Locklizard is the PDF encryption tool. It can protect the files through different ways and set the encryption date. What’s more, it supports users to add watermark onto PDF and limit to print files.
CutePDF is the free PDF encryption tool. It supports to convert the other formats to PDF, but also add password to PDF. Users can set two passwords, including the user password and the main password. Those who open the file with the main password can execute any operation and those who use the user password can merely get some of the authorities. Since the software is applied with the standard encryption way, people should encrypt and decrypt PDF within the same software.
It is convenient to use Axommsoft PDF Encryptio to encrypt PDF files and disable the operation authorities, such as editing, reading and printing. The encrypted PDF files can be merely opened with the correct password. Besides, it supports to encrypt PDF files in batch.
From the above contents, we’ve learned about 6 PDF encryption tools. Locklizard and Axommsoft PDF Encryption are just the PDF encryption tools while the other tools contain the editing functions. Compared with CutePDF and PDF Suite, Renee PDF Aide offers fewer functions, but it is very useful, easy to use and friendly to users.
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