1. Specify page size.2. Support system fonts.3. Convert JPEG,TIFF to PDF.4. Convert Text to PDF.5. Supports tiff,jpeg,bmp,dib,emf,gif,icon,jbig,jp2,pcd,pcx,pict,png,pnm,psd,rle,tga,txt,wmf,xbm and xpm format.6. 40,128-bit encryption.7. Append to existing PDF file.8.Add bookmarks.9.Add PDF information.10.Images can be from memory or disk.11.Set viewer preferences.12.Handle millions of pages.13.Arbitrary placement of images onto new PDF pages.14.Page orientation.15.despecke and skew-correction.