What are some alternatives?
When comparing PDFill and Bullzip PDF Printer, you can also consider the following products
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
PDFCreator - PDFCreator converts every printable document to PDF and many other formats. Create professional PDFs with a few clicks and it's free. With many Professional Features: merge documents, send emails and more.
PDFsam - PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files
doPDF - Multi-language. doPDF is the ONLY free pdf maker whose interface is currently available in 33 different languages and has a website translated in 30 languages (and growing, thanks to our translators).
PDF-XChange Editor - The smallest, fastest, most feature-rich PDF editor/viewer available
PDF24 PDF Creator - Create PDF and convert documents to PDF for free with the free PDF24 PDF Creator.