![]() Rather than provide yet another copy and paste tutorial I want to first dive deeper into digital signatures. It is cryptographically signed and verified by a third party to provide assurance the entity signing the document is who they say they are. Linux doesn’t come with a default PKCS signing certificate, nor do macOS or Windows and with good reason.Ī digital signature isn’t simply a digital representation of a hand-written signature. ![]() Okular does not have the ability to create such certificates since they need to be issued by certificate authorities to be useful for validation, etc.” “To be able to sign a document you need to have a proper PKCS signing certificate available on your system. The second paragraph under “Adding Digital Signatures” is where the rabbit hole begins: Clicking the “Adding Digital Signatures” link brings up the corresponding documentation. I drew a rectangle to insert a signature field, then I was greeted with a message from Okular: I loaded up a PDF, clicked tools, then digitally sign. Okular is full-featured and comes with, in true KDE form, a lot of options, including an option to digitally sign PDFs. Linus used Manjaro during the challenge, which installs KDE Plasma as the default desktop environment, so I installed Okular, the default KDE document viewer. It is light and fast and it can annotate, but not digitally sign, documents. I tried Evince first since it is the default document viewer for Gnome, my desktop environment of choice. I ran into the same problem as Linus when trying to digitally sign a PDF. I wanted to compare my experience to that of Linus and Luke and see if there were common threads. ![]() He ran into the most trouble trying to digitally sign a PDF.Īfter settling into my new daily driver I decided to revisit the Linux Daily Driver Challenge series. Adding a font didn’t matter in the end because Linus breezed through that challenge. ![]() I wouldn’t call that a common task unless one was working with design or desktop publishing on a daily basis otherwise, I think the challenge was fair. Installing a new font was one challenge that seemed out of place. I think, for the most part, the list of tasks were good tests of the difficulty in using desktop Linux in a home or office environment. In this video they were trying to accomplish a variety of day-to-day tasks using a Linux desktop. The video is part three of a four part series where Linus and Luke use desktop Linux as their daily driver. The inspiration for this post comes from a Linus Tech Tips video. Digitally signing a PDF is a simple task however, properly configuring Okular to sign documents can be challenging for new users. ![]()
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