pyHanko: sign and stamp PDF files

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

Open Source Java e-Invoicing library, validator and tool (Factur-X/ZUGFeRD, UNCEFACT/CII XRechnung)

Generic business document validation engine

ExcelGen is an Oracle PL/SQL utility to create MS Excel files (.xlsx, .xlsb)

Oracle PL/SQL Package and APEX plugin for QR Code Generation

BIRT Functions Lib provides examples of both the Script Function Extension Point and the Aggregation extension point

switch user and group id and exec

Dolt – Git for Data

An HTML to PDF library for the JVM. Based on Flying Saucer and Apache PDF-BOX 2. With SVG image support. Now also with accessible PDF support (WCAG, Section 508, PDF/UA)!

Making real use case from Oracle ANYDATA for comparing and logging user defined types

A pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files