pdfa

Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fill forms, print, flatten, and open password-protected PDFs without a subscription.

iText for Java represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enhance PDF documents, iText can be a boon to nearly every workflow.

iText for .NET is the .NET version of the iText library, formerly known as iTextSharp, which it replaces. iText represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enha

GoPDFSuit - Ultra Fast PDF Engine (Gin Web + gopdflib +pypdfsuit)

🇪🇺 💶 Generate e-invoices (E-Rechnung in German) conforming to EN16931 (Factur-X/ZUGFeRD, UBL, CII, XRechnung aka X-Rechnung) from LibreOffice Calc/Excel data or JSON.

Pure Rust PDF library for AI/RAG: structure-aware chunking, no ML, no C deps.

Sample code for the Datalogics C++, Java, and .NET interfaces of the Adobe PDF Library

ilovepdf.com python API library

Modern PHP 8.4 library for PDF generation. Pure PHP, no external runtime dependencies beyond the standard mbstring, openssl, and zlib extensions.

An unofficial PhD Thesis template for pdflatex, lualatex and xelatex for the Technical University of Berlin. The pdf-files are following the PDF/A-1b standard.

Pure-Rust PDF SDK — rendering, extraction, forms, PDF/A, signatures, redaction. Bindings for Rust, Python, Node.js, .NET, Java, C, WebAssembly. AGPL-3.0 or a commercial licence.

pdfRest API Toolkit is a REST API service for processing PDF documents, made by developers, for developers. Rapidly integrate PDF workflows with your existing projects and applications, simply and seamlessly. Get started for free in seconds.

The KOST-Val application is used for validate files and Submission Information Package (SIP).

PDF library for Java, C#, Swift and Go developers

Useful PDF-related productivity tool.

Implementation of PDFAs and PDFA learning algorithm.

Convert/Merge/Split PDF documents

Sample code for the Datalogics C++ interface of the Adobe PDF Library

Sample code for the Datalogics .NET interface of the Adobe PDF Library

Sample code for the Datalogics Java interface of the Adobe PDF Library setup to build with Maven