Here is my 1st attempt at the PTC logo using the underlay PTC_GRAY_1000x338 converted to BMP in MSPAINT.
Let me know if the image is not inbedded.
Anyone care to compare this to a vector generator app?
Please remember that this is an unofficial PTC logo for the purpose of geometric sections; not official art!
As for my efforts, this is free to use as you will.
If this is inappropriate to post, please feel free to delete, Dan.
Attached is Creo 2.0 Parametric full version.