Bizzare print-to-pdf page size default - LO issue?

Open xslx file from a correspondent. Print to physical printer, the print dialog preview looks fine, letter size 8.5x11. Print to Microsoft Print to PDF, the page size in print dialog defaults to 4.13x9.25. What?? More pertinently, how to persuade LO to default to the same page size as document?
This for sure does not happen with other apps, or with LO Write.
thankyou
P.S. Why required field “category” is not labeled “language,” I know not.

Why not File > Export to pdf? It will result in a smaller pdf at the expected size.

Probably, the default paper size for Microsoft Print to PDF is set to that size. The last Windows update reset it for me from A4 to Letter.

Click Start Menu > Settings > Bluetooth & Devices > Printers & Scanners > Microsoft Print to PDF > Printing preferences, click the Advanced button and set Paper Size to Letter. OK out

If you saved the document with those settings, then you might need to click File > Printer Settings > Microsoft Print to PDF > Properties and set Paper Size to Letter. OK out

Thanks for reply. It turns out that both settings you described, already were set to letter.
But as an example of wacko aspects of technology, after simply viewing those 2 settings, without making any change, now BOTH my Canon printer & the virtual MSFT print to PDF, default to some useless Japanese envelope size. Change it to Letter, OK & out, but setting sometimes doesn’t stick. Seemingly random.
BTW I use Microsoft Print to PDF because it works for several other apps, but might be too unreliable in Calc. Maybe I can delete the other paper sizes from my PC.

What version of LibreOffice? Click Help - About LibreOffice to bring up the dialogue, then click the icon with tooltip Copy details to clipboard just after Version information.
Paste those details into a comment.

Have you restarted your computer recently? Click Start menu - Power - Restart (not shut down as that defaults to hibernate).

[Edit 2025-12-09T11:00:00Z ]
Maybe Bug 168759 - Printing: changing printer changes page size

Feel free to add yourself to CC for the bug, at the moment it is in limbo, confirmed but unconfirmed
Re bug report, upgrade to 25.8.3.2 to solve issue

Hello again
Version: 25.8.3.2 (X86_64)
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 10; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded

PC was restarted by MSFT (without announcement thank you MSFT) on 12/9. Just now confirmed that the LO Calc behavior is still wacky.

I cannot replicate in 28.5.3.2, but that shouldn’t stop you making a bug report (and linking the bug report back here). See How to Report Bugs in LibreOffice - The Document Foundation Wiki

Note that there is a similar (but not the same) issue, Paper size changes unexpectedly

The second Tuesday of the month is Update Tuesday for Windows. As soon as I see that my computer has installed the update, I immediately close everything and restart Windows. Installing the updates can leave the computer in an uncertain state and peculiar things can happen, so even when doing something urgent, it is quickest to restart as soon as possible.