# vfr/Reader

PDF Reader Core for iOS

Repository: https://github.com/vfr/Reader
Canonical: https://ross.abutalabs.com/products/vfr-reader
Homepage: http://www.vfr.org/
Language: Objective-C
License: NOASSERTION
License Family: other
Last push: 2019-12-30T22:34:28+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5837, "days_push": 2438, "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 4247, forks 1122 (observed 2026-08-28T04:08:40.393023+00:00)

## What it is
An open-source PDF reader/viewer library for iOS written in Objective-C, providing a complete PDF viewing component with multithreaded rendering, password-protected PDF support, and iBooks-like navigation. The project is explicitly no longer supported or maintained and is kept only for historical reference.

## Use cases
- display pdf files in an ios app
- embed a pdf viewer in my iphone app
- render large pdf documents on ios
- open password-protected pdfs in ios
- add page navigation and thumbnails to a pdf reader app
- build a pdf viewer app for ipad

## When to choose
- you need a self-contained, code-generated (no XIB) PDF viewer for older iOS versions
- you want to study a classic Objective-C PDF rendering implementation
- you must support very old devices and iOS 6+ for legacy projects

## When to avoid
- you are starting a new project - it is unmaintained and the author recommends UXReader-iOS instead
- you need modern iOS/Swift support or ongoing bug fixes
- you need PDF editing, annotation, or form-filling features

## Facets
- artifact type: library
- maturity: abandoned
- function: pdf-viewer, ui-components, image-processing
- domain: pdf, mobile-development
- platform: -
- tags: pdf-reader, ios-library, objective-c, unmaintained, document-viewer, ios, mobile

## Member repositories
- vfr/Reader (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:40.393023+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 2026-08-29T18:22:11.775560+00:00, confidence not recorded.
  - readme: https://github.com/vfr/Reader (fetched 2026-08-28T04:08:40.393023+00:00, sha 431717579e1c)
  - homepage: http://www.vfr.org/ (fetched 2026-08-29T09:11:52.465976+00:00, sha 44136fa355b3)
- Data as of 2026-08-30T08:39:29.467469+00:00.