Licenses

Cerclic uses open-source components. Here are their licenses and where to find their source code.

Cerclic source code

The Cerclic source code is public: github.com/Said-Elaraifa/Cerclic.

Python 3.12

PSF License

python.org
Qt 6.8 and PySide6 6.8

LGPL v3

The Qt libraries are separate files: the _internal folder on Windows, Contents/Frameworks in Cerclic.app. You can replace them with other compatible versions.

qt.io wiki.qt.io/Qt_for_Python
PyMuPDF 1.28 and MuPDF

GNU AGPL v3, or Artifex commercial license

github.com/pymupdf/PyMuPDF
pikepdf and qpdf

pikepdf: MPL 2.0. qpdf: Apache 2.0.

github.com/pikepdf/pikepdf
pdf2docx 0.5

MIT

github.com/ArtifexSoftware/pdf2docx
python-docx

MIT

github.com/python-openxml/python-docx
Pillow 12

MIT-CMU

python-pillow.org
pi-heif 1.4

BSD-3 for its code. Its libheif and libde265 libraries are under LGPL v3.

Reads HEIC photos.

github.com/bigcat88/pillow_heif
NumPy

BSD

numpy.org
OpenCV

Apache 2.0

On Mac, with separate FFmpeg libraries, under LGPL.

opencv.org
lxml

BSD

lxml.de
fontTools

MIT

github.com/fonttools/fonttools
pywin32

PSF License

Windows only.

github.com/mhammond/pywin32
pywinrt

MIT

Windows only: starts with Windows in the Microsoft Store version.

github.com/pywinrt/pywinrt
FFmpeg 7.1

GPL v3

The separate ffmpeg program. On Windows, the “essentials” build from gyan.dev. On Mac, a static build, with x264 and x265. Both are provided by imageio-ffmpeg.

ffmpeg.org gyan.dev/ffmpeg/builds github.com/imageio/imageio-ffmpeg
PyInstaller

GPL v2 with linking exception

Launcher.

pyinstaller.org