Supports TIFF, JPG, PNG, PCD, PSD, TGA, BMP, DCX, EMF, WMF,text, etc. image formats. Supports virtually all TIFF compressions, including ZIP,LZW,CCITT G4/G3,JPEG, Packbits. Outstanding compression. Can combine multiple image files into one PDF file. Can merge and split single or multipage images files to pdf. Supports Multi-page tiff file to PDF conversion. Does NOT need Adobe Acrobat software. Supports single file processing, single directory processing, multi-level directory processing and many other processing modes Can set automatic skew-correction (of B/W images). More mode convert. when batch converting, can multiple image files to a single PDF file, or each image file may be converted into individual PDF files. Makes use of effective compression processing to minimize space occupied by the created PDF files; for example, an A4 size file with a B/W image the output size is about 40KB to 50KB per page; color and gray-scale images are also compressed and optimized. Page layout setting. Password protection for PDF files with 40 or 128 bit encryption. Set file permissions to restrict printing, copying, and future modifications to the document. Specify any resolution(DPI) in the generated PDF file. Optimized to increase speed. Set the document info (title, subject, author and keywords, creator). Append to existing PDFs. Support watermark, bookmark, viewer setting. Images can be from memory or disk. Page orientation.