# KDE/okular

KDE document viewer

Repository: https://github.com/KDE/okular
Canonical: https://ross.abutalabs.com/products/okular
Homepage: https://invent.kde.org/graphics/okular
Language: C++
License Family: other
Last push: 2026-08-26T03:31:06+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 4002, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1485, forks 180 (observed 2026-08-28T04:04:51.449690+00:00)

## What it is
Okular is KDE's universal document viewer for formats including PDF, PostScript, EPUB, Comic Book, and images, with support for annotations. It ships as a desktop shell, a mobile Kirigami app, an embeddable KParts plugin, and generator backends for various document formats.

## Use cases
- view and annotate pdf documents
- read comics and epub files on linux
- embed a document viewer in another KDE application
- fill and save pdf forms
- read documents on a mobile device

## When to choose
- you need a free, feature-rich PDF and multi-format document viewer on Linux or KDE Plasma
- you want native PDF annotation and form support
- you want to embed document viewing in a KDE app via KParts

## When to avoid
- you need a lightweight minimal PDF viewer
- you require a viewer deeply integrated with non-KDE desktop ecosystems
- you need advanced PDF editing beyond annotations

## Facets
- artifact type: application
- maturity: stable
- function: pdf-viewer, gui, plugin-system
- domain: pdf, desktop-applications, files, developer-tools
- platform: windows, cross-platform, cpp
- tags: document-viewer, pdf-annotations, kde, qt, kparts, epub, comic-book-formats, linux, macos, desktop, mobile

## Member repositories
- KDE/okular (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:51.449690+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:33:54.338589+00:00, confidence not recorded.
  - readme: https://github.com/KDE/okular (fetched 2026-08-28T04:04:51.449690+00:00, sha 32633e2debb4)
  - homepage: https://invent.kde.org/graphics/okular (fetched 2026-08-29T11:40:05.706169+00:00, sha 51686073b7fa)
- Data as of 2026-08-30T08:39:29.467469+00:00.