OPEN SOURCE, CLEARLY CREDITED

Licenses & credits.

QFT PDF application code is MIT licensed. Third-party libraries, fonts, and assets retain their respective licenses.

QFT PDF application

The original application code is available under the MIT License. The linked license contains the permissions, conditions, and warranty disclaimer.

Read the QFT PDF MIT License Copyright © 2026 Jie Ren. This application license does not replace any third-party license listed below.

The projects behind the tools

The site includes these libraries, fonts, and supporting assets. Read the third-party notice index.

pdf-lib

Creates and edits PDF documents. Its bundled components and font metric data have additional notices.

@pdf-lib/fontkit

Reads and embeds fonts. The notice collection preserves the licenses and attribution of its bundled dependencies.

Noto fonts

Used for document text and the sample PDF. These fonts remain under the SIL Open Font License 1.1.

PDF.js

Renders the document preview and page thumbnails. Its supporting assets retain the separate notices below.

PDF.js image and color components

Codec and integration notices are included alongside the shipped assets.