![]() 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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