DWF Toolkit 7.2 Handles All DWF files

The version of the DWF Toolkit software is not to be confused with the version number of a DWF file.

1. A DWF file has a file version. It appears at the beginning of every DWF file. It is visible by viewing any DWF file with any text editor such as NotePad. (Note: The rest of the DWF will not appear readable in the editor.) This version number informs a software application as to what attributes, properties, and geometric primitives to expect to find in the DWF file.

2. The DWF Toolkit has a release version. The toolkit is incorporated into DWF-related applications. For example, the DWF Toolkit version is listed in the About box of Autodesk DWF Viewer and Autodesk Design Review. This version number informs a software developer as to what capabilities and defect corrections are included in the package.

The two version numbers are not the same. This is a common misconception. The DWF Toolkit is an API with a version number that is independent of the DWF file version.

The DWF Toolkit is what Autodesk and Autodesk partners use to read and write many different versions of DWF files. The DWF file format version number only changes if Autodesk modifies the DWF file format itself. For example, the DWF 5.5 format introduced Block Refs. The DWF 6.0 format contained multiple pages. The DWF 6.1 format introduced 3D. The DWF 6.11 format allowed for composite DWF files which are a combination of 3D and 2D. The DWF Toolkit version 7.2 is the successor to DWF Toolkit version 7.0. (DWF Toolkit 7.1 was used by AutoCAD 2007 and not released separately.) DWF Toolkit 7.2 is recommended for all DWF needs regardless of the file version. It reads and writes a DWF file of any DWF format version.

Format/ Application	DWF 5.5 single sheet 2D	DWF 6.0 multi-sheet 2D	DWF 6.1 single sheet 3D	DWF 6.11 composite 3D/2D
DWF Toolkit 6.0	Read/ Write	Read/ Write
DWF Toolkit 7.0	Read/ Write	Read/ Write	Read/ Write
DWF Toolkit 7.2	Read/ Write	Read/ Write	Read/ Write	Read/ Write
DWF Viewer 5.0	View/ Print	View/ Print
DWF Viewer 6.5	View/ Print	View/ Print	View/ Print	View/ Print
DWF Viewer 7.0	View/ Print	View/ Print	View/ Print	View/ Print
DWF Composer 1.0	View/ Print	View/ Print
DWF Composer 2.0	Aggregate/ View/ Print/ Markup/ Measure	Aggregate/ View/ Print/ Markup/ Measure	Aggregate/ View/ Print/ Markup/ Measure
Design Review 2007	Aggregate/ View/ Print/ Markup/ Measure	Aggregate/ View/ Print/ Markup/ Measure	Aggregate/ View/ Print/ Markup/ Measure	Aggregate/ View/ Print/ Markup/ Measure
AutoCAD 2007	Underlay/ Publish/ Markup Manager	Underlay/ Publish/ Markup Manager	Underlay/ Publish/ Markup Manager	Underlay/ Publish/ Markup Manager
Inventor 11	Publish	Publish	Publish	Publish

The general summary is that DWF Toolkit 7.2, which was just released, handles all DWF file versions - even those generated by our latest products such as AutoCAD 2007 and Autodesk Inventor 11 DWF Extension. The DWF Toolkit stores the DWF file version in the DWF, using the lowest DWF file version number possible, based on the content of the file. By using the lowest DWF file version number, applications released with earlier DWF Toolkits can process the DWF file. It is only when new DWF capabilities are used that later DWF Toolkits are required.