Dozens of bots for web workflow automation.
PDF Clown - PDF Clown is an open-source general-purpose library for manipulating PDF documents through multiple abstraction layers, rigorously adhering to PDF 1.7 Specification
Phantombuster - A marketplace of simple to use no-code APIs
PdfPig - Read and extract text and other content from PDFs in C# (port of PDFBox)
TexAu - Growth automation to scale your business faster
PDFSharp - Office & Productivity and Development
Wicked PDF - PDF generator (from HTML) plugin for Ruby on Rails