* [pdfjs-viewer v4.2.0](https://github.com/missing-elements/pdfjs-viewer) – Standalone, isolated drop-in PDF.js default viewer web component with iframe-based rendering and extensive configuration via attributes and options.

* [PDFSlick v4.0.3](https://github.com/pdfslick/pdfslick) – Library for viewing and interacting with PDF documents in various JavaScript frameworks.