Add Password Protect to PDF

Restricts what can be done with the document once it is opened (Not supported by all readers)
Restricts the opening of the document itself
Higher values are stronger, but lower values have better compatibility.

Features

Protect any PDF file

Simpdf is an online tool to use when the users have precious PDF data to protect from being misused or used illegally. It helps the users add password protection to PDF files regardless of the contents of the file. You can protect a file with graphs, images, or text.

Personalise the Permission

The owner of the PDF files often wants to allow specific actions in a PDF file rather than restricting its usage completely. Therefore, Simpdf allows the users to set specific permissions related to a PDF file. You can allow others to print, modify, or extract data from the PDF file while prohibiting other actions.

Strong Security and Password Protection

The users can password-protect PDF documents and rest assured about the password being broken while using Simpdf. It is up to the owner to share the “User’s” or “Owner’s” password with certain people. Furthermore, the data is also safe from leakage from Simpdf’s tool.

Customizable Password Strength

The owner of the PDF file has the liberty to add password protection to PDF files by customizing the strength of the password. Simpdf has low, medium, and high strength options in the form of 40, 128, and 256 encryption key lengths.

Password for the Owner and the User

There are two different password options in the settings of Simpdf to encrypt PDFs. The first option is available for the owner and allows him to utilize the PDF as he/she prefers while the second option is for the users who can use the PDF but with restricted permissions.

Free and Easy to Use

The users can password-protect PDF for free online by using Simpdf’s lock PDF document tool. Working with Simpdf is user-friendly as well because the users can complete setting the password protection and permissions to any PDF file in easy steps.

How to Add Password to PDF File?

  1. Step 1: Choose the PDF file to be protected with a password by importing it from your mobile or laptop. Set the “Owner Password” and “User Password”.
  2. Step 2: Now select an “Encryption Key Length” from the 3 options provided to set the strength of your Password. Also, select the “Permissions” including printing, modifying, and content extraction you want to grant to the users.
  3. Step 3: The last step is to simply click on the “Encrypt” and save the password-protected PDF file on your device.

FAQs

1. Why should I encrypt the PDF files?

The main role of encryption of a PDF file is to customize its usage by the people having access to a PDF file. Password protection of a PDF file ensures that the private information stays protected when it is being sent through email.

2. Can I select a specific PDF action to restrict the password using Simpdf?

The users can select specific permissions to be granted while locking a PDF file if they use Simpdf. These permissions include assembly of documents, content extraction, extraction for accessibility, filling in the form, modification, annotation modification, printing, and printing different formats.

3. What type of files are compatible with Simpdf for adding passwords?

Simpdf allows the password protection of any PDF file or document. The content of the pdf or its size does not matter. Moreover, the presence of any figures, tables, or graphs in the file also does not matter for encryption.

4. Is there any risk of uploading my PDF file on Simpdf?

Certainly not! Simpdf is equipped with specialized encryption features that allow it to perform its action while protecting your privacy and keeping the uploaded data safe. Therefore, the users do not need to worry about the security and privacy protection of their files while using Simpdf.

5. How does password protection differ from using encryption for PDF files?

Both passwords and encryption aim to protect your data from a security breach and unauthorized access. However, passwords can easily be cracked by trying a number of different combinations. In contrast, encryption provides security on a higher level and cannot be broken easily.