How to Protect PDF Documents While Keeping Their Values Unchanged?

PDF is a file format for the long-term archiving of electronic documents. Portable Document Format (PDF) is created by Adobe Systems. It represents two-dimensional documents in a manner independent of the application software, hardware, and operating system. Each PDF file encapsulates a complete description of a fixed-layout 2D document. A PDF file may be encrypted for security, or digitally signed for authentication. You can create a digital signature for the PDF or protect it by adding a password to the file. For that purpose, we recommend using the best PDF Protection Software for easy and quick operation.

Digital Signature: Firstly, ensure that the document is authentic. Additionally, check that it is not changed by another party instead of the author itself. It guarantees that the author can’t deny the ownership. The digital signature is electronic and invisible, to protect confidentiality.

Password Protection: The standard security provided by PDF consists of two different passwords: "user password" and "owner password". A PDF document may be protected by a password to open ('user' password). Furthermore, the document may also specify operations that should be restricted even when the document is decrypted. It includes printing; copying text and graphics out of the document; modifying the document; and adding or modifying text notes and Acroform fields (using an 'owner' password)..

Creating A Secure Password

Follow these tips to create a password that is secure enough to protect your PDF.

• It should be 8-9 characters long, maximum 16.
• Any private data like first name, last name, or organization’s name shouldn't be used.
• Do not prefer using an old or expired password.
• Do not include a single dictionary word.
• Create a password with a combination of uppercase letters, lowercase letters, numbers, and special characters.

With this, you can easily protect PDF documents while keeping their values unchanged. However, what if your PDF file gets corrupted or damaged in the process? Or what if you cannot access your PDF file after encryption? In such a scenario, you can repair a corrupt PDF file with the SysInfo PDF Recovery Tool. It is a risk-free utility that ensures retrieval of PDF data without any loss.