The software installs as a shared print driver, which means users need only click the print button in any application to create a PDF file. Users can choose the page size and orientation, resolution, and whether a font should be embedded or not. It allows documents to be encrypted, and user permissions to be set. A specific image can be set as a page background to watermark a document. For more information, http://www.realpdf.com/server.html

Encrypt PDF Command Line
Encrypt PDF software allows you to encrypt (using standard 40-bit or 128-bit supported by Acrobat Reader 5.0 and up) existing PDFs.

TIFF To PDF Convert Command Line
TIFF image to PDF format batch conversion utility (tiff to pdf , tif to pdf, tiff2pdf, tif2pdf ) that converts TIFF files (including multi-page images) into PDF .

pdf stamp command line
PDF Stamp is an advanced product that enables you to stamp content into a PDF document. Besides images, texts and graphics, PDF Stamp is able to add links and notes.

Adolix Split and Merge PDF
Merge PDF files into a single document. Split PDF into multiple files following a custom pattern similar to Word printing. Combine encrypted PDF with just a few clicks.

ParmisPDF - Premium Edition
ParmisPDF is the perfect PDF with the ability to perform wide range of operations on PDF files & converting files to PDF; Comprising a user-friendly interface ideal for users of any skill level. This application is useful for businesses in any scale.