Strapi
Contentful
Directus
Sanity.io
WordPress
Payload CMS
Ghost
Prismic
Okular
Sumatra PDF
Evince
calibre
MuPDF
Adobe Reader
FBReader
PDF-XChange Editor
Strapi
OkularStrapi is recommended for developers and development teams looking for a flexible and customizable CMS solution, particularly those who need a headless CMS that integrates easily with modern frontend frameworks like React, Vue, or Angular. It's also suitable for organizations that prefer an open-source solution they can modify according to their needs.
Okular 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.
Based on our record, Strapi should be more popular than Okular. It has been mentiond 341 times since March 2021. 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.
That's not true anymore. In 2026, developers are switching away from Strapi at a pace that's hard to ignore โ not because it got worse, but because the alternatives got dramatically better. - Source: dev.to / 5 days ago
CMS content. Headless CMS responses from Strapi, Sanity, or Contentful are deeply nested. Type them once; let the compiler catch template bugs. - Source: dev.to / 3 months ago
Strapi is an open-source, Node.js-based headless CMS that gives developers full control over content APIs. Itโs self-hosted, fully customizable, and supports REST and GraphQL, making it a favorite among developers building JAMstack and API-first applications. - Source: dev.to / 12 months ago
This is where Strapi a flexible and scalable content management solution is needed. - Source: dev.to / about 1 year ago
Strapi offers multiple authentication methods to secure your application:. - Source: dev.to / about 1 year ago
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: about 3 years ago
Contentful - You don't need another CMS. You need a better way to manage content โ unified, structured, and ready to deploy to any digital channel.
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
Directus - Free and Open-Source Headless CMS
Evince - Evince is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS...
Sanity.io - Sanity.io a platform for structured content that comes with an open-source editor that you can customize with React.js.
calibre - Ebook manager, viewer & converter