bwuxqdmgyeub / pdf-annotate

Edit PDFs in-browser: add text, highlights, stamps, freehand ink; fill forms, merge pages, export annotated PDFs.

gotenberg / gotenberg

A developer-friendly API for converting many document formats into PDF files, and more!

qpdf / qpdf

qpdf: A content-preserving PDF document transformer

pikepdf / pikepdf

A Python library for reading and writing PDF, powered by QPDF