The Apache PDFBox library is an open source Java tool for working with PDF documents. PDFBox is free and open source software.
Read more
The Linux Portal Site
The Apache PDFBox library is an open source Java tool for working with PDF documents. PDFBox is free and open source software.
Read more
OpenPDF is a Java library for creating and editing PDF files with a LGPL and MPL open source license. Fork of iText 4.
Read more
Apache FOP (Formatting Object Processor) is a print formatter driven by XSL formatting objects (XSL-FO) and an output independent formatter.
Read more
Poppler is a PDF rendering library based on the xpdf-3.0 code base. Poppler comes with multiple frontends (APIs): cpp, glib and qt5.
Read more
PoDoFo is a library to work with the PDF file format. The name comes from the first letter of PDF (Portable Document Format).
Read more
Factor is a dynamic stack-based programming language inspired by earlier stack-based languages like Forth and Joy.
Read more
Here’s our recommended free HTML tutorials to master this language.
Read more
Pike is an interpreted, general-purpose, high-level, cross-platform, dynamic programming language. Read our recommended tutorials.
Read more
In 2014, we identified 5 promising free and open source Integrated Development Environments. How did they fare?
Read more
D is a general-purpose systems programming language with a C-like syntax that compiles to native code. Here’s our recommended D books.
Read more
Markdown is a plain text formatting syntax created by John Gruber in 2004. It’s designed to be easy-to-read and easy-to-write. Here’s our recommended Markdown tutorials.
Read more
TypeScript is a strict syntactical superset of JavaScript and adds optional static typing to the language. Here’s our recommended free tutorials to learn TypeScript.
Read more
ML (“Meta Language”) is a general-purpose functional programming language. It has roots in Lisp. Here’s our recommended free ML books.
Read more
Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. Here’s our recommended tutorials to learn Kotlin.
Read more
ECMAScript is an object‑oriented programming language for performing computations and manipulating computational objects within a host environment. Here’s our recommended tutorials to learn ECMAScript.
Read more
Vala is an object-oriented programming language with a self-hosting compiler that generates C code and uses the GObject system. Here’s our recommended free tutorials to learn Vala.
Read more
Vala is an object-oriented programming language with a self-hosting compiler that generates C code and uses the GObject system. Here’s our recommended books to learn Vala.
Read more
XML is a set of rules for defining semantic tags that describe the structure and meaning of a document. Here’s our recommended free tutorials to learn XML
Read more
XML is a set of rules for defining semantic tags that describe the structure and meaning of a document. Here’s our recommended free XML books.
Read more
Solidity is an object-oriented, high-level language for implementing smart contracts. Solidity was influenced by C++, Python and JavaScript. Here’s our recommended tutorials to learn Solidity.
Read more