Print Edge Problems

[FrustratedReception]

I downloaded a great template (I believe it was from this forum actually) to make a Tri-Fold Leaflet but when I print the edges are way out despite looking fine on the print preview and I know the printer can print fairly close to the edge.
I've added a copy of the source file with the company logo and name removed, a scan of the printout and a screenshot of the print preview to give you all a good idea of each stage.
I've tried fiddling a bit but everything I've touched just destroys all the formatting that I have.

(also if anyone has any recommendations for additions to the content of the leaflet this is welcome too)

Thanks!

[RoryOF]

What paper size is being used in your printer? Your second image looks like it is printed on A4, not US Letter.

[FrustratedReception]

It is UK A4 but I have tried changing the paper type on the print options to A4 and it didn't make a notable difference.

[Zizi64]

It is UK A4 but I have tried changing the paper type on the print options to A4 and it didn't make a notable difference.

The size of the A4 paper is: 297,0 x 210,0 mm
The size of a letter paper is 279,4 x 215,9 mm

There is not enough place to print a letter size document onto an A4 paper.
You must reedit the document to the A4 size, or you can try to decrement the margin size.

similar topic:
viewtopic.php?f=7&t=42219

[RoryOF]

You need to /Format /Page and set Page size to A4, then reposition your columns to suit the new page size. Or leave it at Letter, then on /File /Print, press Properties button and select Letter as the Paper size in the printer, then insert Letter sized paper in the printer (if you can find this in an A4-using locale).

[RoryOF]

Here is a trifold template designed for A4 paper.
https://templates.openoffice.org/en/node/2979