Apps similar to FastPDF API include iText, which has a free version. Other options are Oicana, RadaeePDF Master SDK and IronPDF. In total there are four PDF Editors like FastPDF API for Windows, iPhone, iPad, self-hosting and Linux.
iText is an intuitive and refined text editor with word processing completely rewritten in Cocoa (so works with Afloat), and is suitable for both Power PC and Intel Macs. iText provides the simplest way to make gorgeous manuscripts on your Mac!
Oicana offers seamless PDF templating across multiple platforms. Define templates using the modern and open source typesetter Typst. Then specify dynamic inputs and generate high quality PDFs from any environment - whether it’s a web browser, server application, or desktop...
The framework is completely customizable with a full featured set of API and flexible classes. RadaeePDF Master SDK allows you to read, annotate, manipulate, do text searches and extractions, and much more besides.
IronPDF is a C# PDF library for .NET, .NET Core, and Framework applications. It facilitates the creation, editing, and reading of PDFs. It can convert HTML to PDF in .NET 8, 7, 6, Core, and Framework, and allows PDF generation using HTML, MVC, ASPX, and Images.
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