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Annotation

This page discusses some of the libre software available for annotating digital documents, especially in the context of a pen-enabled tablet or similar input method.

Contents

Production Ready

Jarnal

Jarnal is Java-based PDF annotation software. It runs on Linux, Mac OS and Windows.

Okular

Okular is the KDE document viewer. While the underlying PDF reader library Poppler does not yet support annotations, Okular stores inking information its own database. Okular is a part of KDE and as such available for Linux, Mac OS and Windows as part of the KDE suite (sometimes packaged with kdegraphics).

Xournal

Xournal is a GTK+-based inking application. It runs on Linux and potentially on other platforms. Annotation of PDFs is supported by loading a Popplar-rendered PDF as a background image, but it requires that annotations be saved to a separate .xoj file or exported to a new PDF file, and does not support annotating PDF files directly.

Under Development

See Also