The best open source PDF Editor alternative to Adobe Acrobat Reader is Okular. If that doesn't suit you, our users have ranked more than 100 alternatives to Adobe Acrobat Reader and ten of them are open source PDF Editors so hopefully you can find a suitable replacement. Other interesting open source PDF Editor alternatives to Adobe Acrobat Reader are PdfDing, LocalPDF Studio, PDF4QT and OpenViewerFX.
Multi-platform document viewer offering extensive format support, including PDF, comics, images, EPUB, and Markdown, with annotation tools, sidebar previews, text-to-speech, DRM management, cross-platform compatibility, and integration with KDE Frameworks libraries.
PdfDing is a browser based PDF manager, viewer and editor that you can host yourself. It offers a seamless user experience on multiple devices. It's designed be to be minimal, fast, and easy to set up using Docker.
A PDF Editing tool that ensures your privacy. Open source, available on Windows, MacOS and Linux. Available in 4 Languages (English, Bengali, Chinese and Japanese). Ambient vibes are also included....
Open-source PDF viewer and editor using Qt framework, featuring hardware-accelerated rendering, encryption, multithreading, text-to-speech, annotation tools, form filling, high-res monitor support, document compression, audio book conversion, and signature validation.
Innovative open source JavaFX PDF Viewer that combines the power of JavaFX with IDRsolutions industry leading PDF library to deliver a complete cross-platform PDF Reader/Viewer.
PrivatePDF is a free web tool that lets you make quick PDF edits from within your web browser, without uploading anything anywhere.
Bookworm is a document reader that allows you to read more than 15 document formats including PDF, EPUB, and MOBI using a versatile, yet simple, and highly accessible interface.
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It's very fast free pdf reader with some useful editing functions.