You could have downloaded SlickPdfPlus 4.0 from our software library for free. Our antivirus analysis shows that this download is safe. Commonly, this program's installer has the following filename: Slickpdf.exe. SlickPdfPlus relates to Photo & Graphics Tools. This tool was originally created by CAD Systems Unlimited, Inc. The most popular versions of the program 7.0, 4.0 and 3.0.
From the developer:
Convert AutoCAD drawings from thru AutoCad 2010 to PDF vector or PDF raster format and to a large number of raster formats including tiff, jpgs, bmp, cals, jedmics and more. Batch conversion of drawings supported. Option to convert only want is shown on the display to pdf raster and other raster formats.
You may want to check out more software, such as GnuWin32: NetPbm, Bojo Video Converter or pic2ascii, which might be related to SlickPdfPlus.