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.
JugiPaint - JugiPaint is a painting software with diverse tools for various types of illustration work.
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
miniPaint - Online graphics editing tool use HTML5 technologies like Canvas, Offline support, Drag and Drop.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
RealWorld Paint - RealWorld Paint is an free portable image/photo/animation editor.