PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.

gLabels - gLabels is a program for creating labels and business cards for the GNOME desktop environment.

DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

LABEL MATRIX - Barcode label design software that’s as simple as you need it to be, with helpful options that ensure a straightforward label design process.

PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request

Orion Label Maker - Orion Label Maker is the all-in-one solution for designing and printing labels right from your Mac.