![]() A user must have a key to decrypt the PDF and use it. ![]() You can prevent people from accessing a PDF document when they are not authorized to do so using encryption. When we talk about the ability to restrict PDF files, what are we actually talking about? Here we describe the various levels to control PDF access and make a PDF read only. You send the DRM-protected PDF to users just like any other file (via email, file sharing, messaging, etc.).You choose which documents users can access via the Admin System.Once activated, the user cannot activate the license file elsewhere (unless otherwise specified). After installing the viewer, the user clicks the license file to activate it on their PC.Users receive an email with a license file and a link to download the Safeguard secure viewer.You create a user account for each person you want to be able to view the document.PDC file and adds a record of the document to the Admin System. Safeguard saes the protected PDF to your disk as a.These can include anti-screenshotting and copying techniques, printing controls, watermarks, device/location locking, and more. You encrypt a PDF on your local PC and add any DRM controls you desire.It does not use passwords at all which means they cannot be cracked or shared. Locklizard Safeguard PDF protection uses a combination of 256-bit AES encryption, licensing, transparent key management, and a secure viewer application to restrict viewing, editing, and printing. Today, there are two main ways to prevent PDF editing, printing, and viewing: Adobe Acrobat permissions and PDF DRM solutions. So the ability to control PDF use has become increasingly important over time. Today making a high-quality printed copy of a PDF document is trivial, and every PC has a print screen key on it so you can get screen copies at the touch of a button. And laser printers were expensive in every sense for many years.īut all that has changed. The focus was not on how to restrict the number of prints available on a PDF, but getting it to work with all the emerging printing technologies. And that is why the ability to restrict PDF editing and printing has become more sophisticated over time.ĭomestic printing systems were often a dot matrix printer (remember those?) where high quality was not an option, nor was colour or graphics. Original PDF restriction controls were designed when most of today’s PDF generation software was in its infancy, and some did not exist.
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