All of these online tools ask you for a password to protect your PDF file. One of the crucial flaws they share is the use of passwords to decrypt the PDF file. Removing PDF passwords and permissions with a free tool To their credit, they do just as well as Acrobat, it’s just that Acrobat isn’t much good to begin with. This is the main Adobe Acrobat alternative you’ll run into. All of them claim to protect your documents, but they do so with varying degrees of effectiveness. The market is full of a variety of free and paid PDF encryption software. We’re going to look at various options and cover key factors that should influence your program of choice for encrypting PDF documents. Thankfully, Acrobat isn’t the only PDF encryption software on the market. It is therefore quite easy to crack its protection, even today. Unfortunately, the security in Adobe Acrobat is still poorly implemented and plagued with vulnerabilities. In 2001 Adobe implemented the much stronger 128-bit encryption, and in 2008 256-bit encryption, which despite being stronger cryptographically, was less secure than 128-bit due to even poorer implementation. The 40-bit RC4 encryption was broken shortly after its release and the methods to bypass it quickly became public knowledge. It added its first security features in 1994, including encryption, which was the only practical way of protecting information. A history of Adobe Acrobat encryptionĪdobe created Acrobat in the early 90s when the public internet was still in its infancy and the world hadn’t been exposed to the full range of security threats. Despite being a paid tool, Adobe Acrobat encryption just isn’t implemented securely. When it comes to encryption, though, users will find it rather lacking. Adobe Acrobat is a fantastic tool for creating and editing PDFs.
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