Looking at your forum profile, you may be using a Next Wave Piranha machine tool,
if this is the case the (inch) post processor that you will need to use, is the "CNCPiranha (inch) (*.tap)" one.
(I have attached it to this reply).
If you are using a standard G-Code post processor the output size will not be correct.
Please copy the attached file to the "PostP" folder of PhotoVCarve trial edition.
This is usually located at "C\Program Files (x86)\PhotoVCarve Trial\PostP"
(Assuming a 64 bit edition of Microsoft Windows).
Once you have copied the new post processor, exit the application and restart it.
The new post processor will be labelled as "CNCPiranha (inch) (*.tap)" in the list of post processors.
Please give this a try with your machine.
As redandbon has mentioned, the trial edition of PhotoVCarve is a little different to the other product trial editions,
in as much as it will let you machine your own photographs, to whichever size that you wish.
Your own photographs will be machined with a watermark.
I hope that this helps.
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