NextPDF Professional allows you to convert documents to PDF (Portable Document Format) from any PC applications as long as the PC software can generate 'Print' output. NextPDF comes with English, Traditional Chinese and Simplified Chinese interfaces. NextPDF Professional offers the following features:Level of resolution: it can output as PDF in screen quality, printer quality, e-book quality or pre-press qualityPaper size: it can generate PDF in different paper sizes ranging from Letter, A5, A4, A3, A2, A1 to as large as A0.Passwords : allows an user to set passwords which requires receivers to type in before opening the PDF.Watermark: supports to embed watermark in the output PDF such as "Confidential", "Sample" or "Draft". Users may even use their own watermark words by saving them in the folder under the NextPDF installation directory.Security levels: Low-quality Print, View Only or Copy Prohibit, File Protection with 40-bits and 128-bits encryption.