Hi all, Thanks for your replies and suggestions. I had followed the documentation, specifically page 5, bottom, of https://schaffter.ca/mom/pdf/mom-pdf.pdf "Producing PDFs with groff and mom" but this default-to-US-Letter page size persisted.
Peter Schaffter replied directly and I'm copying his response below for the benefit of future users who might face the same problem. (tl;dr I was using an old version of mom with a potential bug, and my document settings didn't help things either.) I've replaced om.tmac v2.4 with v2.5_b and my test document is now working exactly as expected. If you're new to groff/mom, please make sure your version of the mom > macros is the most current (2.5_b). If not, download the tarball > from > > https://www.schaffter.ca/mom/mom-2.5_b.tar.gz > > and replace your current om.tmac. A bug with some features similar to > your problem was fixed a few versions back. It is, however, not the > only culprit. In the example you sent, if you add > .FOOTER_MARGIN 0 > .HEADER off > .PAGINATION off > underneath > .PAGE 15c 15c 1c 1c 1c 1c > and make text spill onto the next page, you'll see that the page > dimensions and margins are respected. Explanation follows. > > The final argument to .PAGE is the bottom margin, which mom > understands to mean the bottom margin of running text. In addition > to the bottom margin, mom has a footer margin, the baseline on which > page numbers or other footer material sits. > > The bottom margin cannot be lower than the footer margin, but when > you make your bottom margin 1c, as you've done with .PAGE, it is; > mom's default footer margin is 1/2-inch. Setting the footer margin > to zero removes the conflict. (The other two suggested lines are so > you get a clear view of the margins on both pages.) > > You may want to read > > https://www.schaffter.ca/mom/momdoc/headfootpage.html#hdrftr-vertical > > which explains the matter fully. > Thanks to Peter, Oliver and Deri for your replies. My problem is solved and my understanding of the mom macros is greatly improved. Thank you! Marcus
