# unidoc/unipdf

Golang PDF library for creating and processing PDF files (pure go)

Repository: https://github.com/unidoc/unipdf
Canonical: https://ross.abutalabs.com/products/unipdf
Homepage: https://unidoc.io
Language: Go
License: NOASSERTION
License Family: other
Topics: golang, pdf, pdf-library, pdf-generation, pdf-document-processor, text-extraction, pdf-manipulation, pdf-compression, pdf-reports, signing, pdf-sign, pdf-reader, pdf-generator
Last push: 2026-07-31T13:15:51+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 95, release rhythm 83, longevity 100
- inputs: {"age_days": 2666, "days_push": 33, "days_rel": 33, "gap_med": 34.0, "n_releases_24m": 21}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3106, forks 280 (observed 2026-08-28T04:07:43.736453+00:00)

## What it is
UniPDF is a pure Go library for creating, reading, and processing PDF files, including report generation, form filling, digital signatures, text/image extraction, and page manipulation. It is a commercial product (UniDoc EULA) with over ten years of production use and professional support.

## Use cases
- generate pdf reports and invoices in go
- extract text from pdf files
- merge and split pdf documents
- fill and flatten pdf forms
- digitally sign pdf documents
- compress and optimize pdf file size
- add watermarks to pdfs
- convert images to pdf

## When to choose
- you need a comprehensive, production-grade PDF toolkit in pure Go with no CGO dependencies
- you need commercial support, SLAs, and compliance features like PDF/A and PAdES signatures
- your team can obtain a commercial license for closed-source distribution

## When to avoid
- you need a free open-source library under a permissive license like MIT or Apache
- your project is small-scale and a lighter tool like gofpdf suffices
- you cannot accept the UniDoc EULA or licensing costs

## Facets
- artifact type: library
- maturity: active
- function: pdf, parser, image-processing, security, templating
- domain: pdf, files, developer-tools, web-development
- platform: go, cross-platform
- tags: pdf-generation, text-extraction, pdf-forms, digital-signatures, commercial-license, pure-go, pdf-manipulation

## Member repositories
- unidoc/unipdf (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:43.736453+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 2026-08-29T18:46:10.193218+00:00, confidence not recorded.
  - readme: https://github.com/unidoc/unipdf (fetched 2026-08-28T04:07:43.736453+00:00, sha 4f353193e7d7)
  - homepage: https://unidoc.io (fetched 2026-08-29T09:42:02.420460+00:00, sha 0f25bc20d3d3)
  - site_page: https://docs.unidoc.io/ (fetched 2026-08-29T09:42:02.423318+00:00, sha c85c2be95ecc)
  - site_page: https://unidoc.io/about (fetched 2026-08-29T09:42:02.428600+00:00, sha facdc3b65ae9)
  - site_page: https://unidoc.io/pricing (fetched 2026-08-29T09:42:02.425126+00:00, sha 93fb52c61551)
- Data as of 2026-08-30T08:39:29.467469+00:00.