AutoCAD to PDF Converter 3.91 allows you to convert DWG to PDF, DXF to PDF, DWF to PDF directly, NO AutoCAD required, batch conversion supported. Features includes: 1. Create a single merged PDF file from several DWG files or create an individual PDF file for each DWG file selected; 2. Both model space and paper space supported; 3. Batch mode supported; 4. Multiple choice of output paper size; 5. Supports every version of DWG/DXF files (Supports R2.5 to 2009 formats); 6.Supports advanced bookmark, create bookmark automatically using layout name and file name; 7.The "pro" version alows customize pdf watermark[NEW]; 8.Easy to use. Now, Layers selection is supported, let you turn on or turn off each layer, and the settings could be different to each layouts, or set specific layers been turn off to all the drawings. The software is trying to be ease of use to the starters, and power of features to the experts.