Package

@pdf-lib/upng

Small, fast and advanced PNG / APNG encoder and decoder

v1.0.1, 20 Feb 2020MITESM + CommonJSTypes: Bundled

$ npm install @pdf-lib/upng

npm GitHub

Key numbers

As of 25 Sept 2026

Weekly downloads: 10m; +427% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 1; Direct, from package.json
Last release: 6 years ago; v1.0.1
GitHub stars: 10; 10 forks
Open issues / PRs: 0 / 2
Contributors: -
Commits, last 52 weeks: 0

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

10,033,661 downloads last week, 43,930,008 in the last month. The 12-month change of +427% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 02 in total
Latest version: 1.0.1, 20 Feb 20206 years ago
First published: 20 Feb 2020
Last push to GitHub: 18 Mar 20221,651 days before the snapshot
Repository archived: No
Open issues: 0
Open pull requests: 2
Commits, last 52 weeks: 0
Dependents on npm: 84

Major versions

v1 first release 1.0.0, 20 Feb 2020

Recent releases

Version	Published
1.0.1	20 Feb 2020
1.0.0	20 Feb 2020

Compatibility

Module format: ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: Not declared
Runtimes: -
Unpacked size (npm): 691 kB
Dependencies (1): pako

Install

npm install @pdf-lib/upng

CDN

jsDelivr: 847.5k requests in 30 days

jsDelivrhttps://cdn.jsdelivr.net/npm/@pdf-lib/upng@1.0.1/
unpkghttps://unpkg.com/@pdf-lib/upng@1.0.1/
esm.shhttps://esm.sh/@pdf-lib/upng@1.0.1

Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): no category.