![]() ![]() Adobe uses passwords to restrict PDF access and use, and Locklizard uses public key technology, licensing, secure and transparent key management, and DRM controls. PDF restriction works differently depending on the software you use to apply the restrictions, though there are some similarities.īoth Acrobat and Locklizard use encryption, for example, though with Acrobat the strength of that encryption depends on the version you have, meaning you have to choose between security and compatibility with older readers. Many of these flaws still exist, which is why we’ll be showing you how to restrict editing in PDF files with both Adobe Acrobat and a more secure alternative: Locklizard Safeguard PDF Security. And though Adobe was quick to update its Acrobat application with printing, editing, and opening restrictions, it failed to address fundamental flaws in its protection – and frequently introduced new ones. At the time, there wasn’t much thought for PDF security – the Internet was in its infancy, and many of the complex attacks we see today hadn’t been developed.īy the mid-90s, however, it was clear that cybersecurity would be a major part of the technology landscape for years to come. The Portable Document Format (PDF) was designed by Adobe in the early 90s to be as universal as possible. In this article we cover how to restrict editing in PDF files using Adobe Acrobat – and show you how easily PDF restrictions can be removed, and Locklizard Safeguard as a secure and permanent solution. ![]() ![]() However, they all use passwords for protection which can be easily removed along with any restrictions you have applied. There are many tools that enable you to restrict PDF editing, the most popular one being Adobe Acrobat. ![]()
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