Autocad has a free viewer for downloading in order to view Acad drawings for people who don't have Autocad software. The Autocad drawing is saved as a .dwf file within Autocad and can be viewed in the free Autodesk Express Viewer. Go here for the free download: http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=2952277&linkID=2475161
With the viewer you can print the drawings and the .dwf files are small so that they can easily be e-mailed. You can zoom and pan, turn layers on and off, and can tile the print if you want to puzzle a much large sheet together that your printer cannot handle.

Volo View is a more robust program that allows measuring areas and distances and can plot, as opposed to printing, the files. For lofting you would want a plotted file to use as a template. Volo View is on sale on the Autodesk website for $49. It usually costs $195.

If you can save a Pro-E file as an Autocad .dwg and then within Autocad save the .dwg as a .dwf then you could distribute the .dwf file for anyone that has downloaded the free Express Viewer.

Alternatively, I think Pro-E can save as an Adobe .pdf file but the quality is horrible. If you have Adobe Distiller you can print to Distiller for a good quality file that can be printed but it's still not as good as the features that are included in Acad Express Viewer.

If the creator of the drawings has Autocad, then the .dwf file and the free Acad Express Viewer will allow everyone to have a good look at the drawings.