With the latest 3DViewStation relrease we replaced our previous TIFF rendere by a complete new developed one. Now Zomm and pan has become ultra fast, even for 10x A0 / 10x E-size drawings.
As another small enhancement we do not only allow calibration of a 2D drawing, but also to use a scale, like noted in the titleblock of the drawing.
The improvement is available for both, Desktop as well as WebViewer version of 3DViewStation.
All release information can be found in our helpcenter.