- hummus - c++ pdf manipulator
- mimeograph - api on a conglomeration of tools (poppler, tesseract, imagemagick etc)
- pdftotextjs - wrapper around pdftotext
- pdf-text-extract - another wrapper around pdftotext
- pdf-extract - wrapper around pdftotext, pdftk, tesseract, ghostscript
- pdfutils - poppler wrapper
- scissors - pdftk, ghostscript wrapper w/ high level api
- textract - pdftotext wrapper