
Okular
Sumatra PDF
Evince
calibre
MuPDF
Adobe Reader
FBReader
PDF-XChange Editor
Authenticator
Aegis Authenticator
andOTP
OTP Auth
Authenticator Plus
TOTP Authenticator
Tofu Authenticator
OTPClient
Okular
AuthenticatorOkular is recommended for students, educators, professionals, and any users who require a reliable and feature-rich document viewer capable of handling a wide range of file formats. It is particularly beneficial for those who value open-source software and need robust annotation and document management tools across different platforms.
Authenticator (mattrubin.me) is recommended for individuals and professionals who need a reliable and easy-to-use solution for managing two-factor authentication codes across multiple accounts. It's ideal for users who value open-source software and prioritize security without the need for additional features commonly found in more complex applications.
Based on our record, Okular seems to be a lot more popular than Authenticator. While we know about 44 links to Okular, we've tracked only 4 mentions of Authenticator. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
If you mean signing as in "signing with your handwritten signature", you could use Okular () which easily allows you to do that. Filling out forms also works nicely. Source: over 2 years ago
I was in a similar position lately until I found Okular. Have you tried it? https://okular.kde.org/. - Source: Hacker News / almost 3 years ago
I would try Okular first, though, which is free and open source: https://okular.kde.org/. Source: about 3 years ago
KDE's okular might be a good choice. I haven't personally used it for epub but I know it supports it. https://okular.kde.org/. - Source: Hacker News / about 3 years ago
I use okular, don't think it has web export though. Source: over 3 years ago
PS. At the moment Iโm using this one. Itโs really good but itโs missing an export feature. Source: over 3 years ago
For iOS? Authenticator - it's open-source and about as simple as it gets. Source: over 3 years ago
For iOS offline, you could go with Tofu or Authenticator. These are open-source alternatives. Source: almost 4 years ago
2FA: This is a necessity for all online accounts nowadays, but it is important to store your TOTP codes somewhere trusted and secure. Services like Authy are cloud-based and proprietary, meaning that no one can verify their privacy and security claims. Cloud-based applications are risky as it is, and it is best to keep your codes somewhere local on your devices, such as Aegis for Android, or Authenticator for iOS.... Source: over 4 years ago
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
Evince - Evince is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS...
andOTP - andOTP is a two-factor authentication App for Android 4.4+
calibre - Ebook manager, viewer & converter
OTP Auth - The app for calculating one-time-passwords on iPhone and iPad.