Gmagon Gif is the best GIF to APNG converter for Mac. It helps users convert GIF files to animated PNG on Mac easily with very good quality.
Downloads: 80954 - Shareware - Download Now

DWG to JPG Converter Pro is a batch converter that allows you to convert DWG and DXF files to JPG (JPEG), BMP, TIF (TIFF), GIF, PNG, TGA, PCX, WMF and EMF without the need of AutoCAD. The Pro version supports command line.
Downloads: 37020 - Shareware - Download Now

A full featured PDF to DXF converter that allows you to easy convert PDF to DXF and PDF to DWG without the need of AutoCAD. DXF compatible with any popular CAD systems, such as AutoCAD, IntellCad, etc.
Downloads: 38375 - Shareware - Download Now

PDF to DWG Converter is a batch converter that allows you to batch convert your PDF files to usable and editable AutoCAD DWG or DXF files, so you can recover the entities in PDF to corresponding DWG entities easily.
Downloads: 43491 - Shareware - Download Now

DWF to DWG Converter converts DWF files to AutoCAD DWG and DXF file formats, you can recover DWF entities to corresponding DWG entities easily. It supports the DWF layers, multi-page specification and all entity types.
Downloads: 49932 - Shareware - Download Now