PDF final size not matching page size - Windows

[creeduk]

Preflight Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

You must agree to search and the code of conduct. You must fill in this entire template. If you delete part/all or miss parts out your issue will be closed.

Describe the bug
In earlier versions I had no issue the size was minimally different 14 x 8.51, I tested again today version 22.1.11 and the steps below give me a 14 x 8.51 PDF. In newer versions this started to slip and the current version (24.6.4) gives 14.58 x 8.85.
Crop will crop down to the size of rectangle. But even if I make a 14 x 8.5 rectangle the PDF is a different size (14.61 x 8.88)

To Reproduce
Steps to reproduce the behavior:

1. New blank document
2. set document paper size to legal (14 x 8.5)
3. Add anything I added a simple rectangle
4. Export to PDF - Default settings

Expected behavior
A PDF that matches the size of the
test_legal_22.1.pdf
test_legal_page_latest_26.4.pdf
test_legal_drawio_file.zip
document paper size

Screenshots
If applicable, add screenshots to help explain your problem. - See example uploads

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version 24.6.4 (also in 24.4.0 and others)

Desktop (please complete the following information):

• OS: Windows

Additional context
I started working backwards trying to find which version worked I have updated several time this year but my other outputs had been images, today I could not match the earlier PDF's I had so after 3 different version I found the 1 that worked OK. One I tested along the way 24.0.4 was close with 14 x 8.53 so it is something that has been slipping a little at a time.

As a crop test I made the rectangle 14 x 8.5 and selected crop in export options, but this still did not make a correct size PDF

[Frame42]

I can confirm the behavior is also present on the Confluence plugin version 13.0.6.

Exporting a US-Tabloid 11x17 draw.io gives me a 11.46 x 17.71 PDF.

Weather the page size is defined in inches, centimeters or points does not make a difference.
When exporting, Page View or Fit give the same result, Crop is slightly different but also off.

[gerwindehaan]

In Draw.io 24.6.4 --

100mmx100mm-test.drawio.pdf
100mmx100mm-test.drawio.zip

Experiencing similar issue in A4, but also custom size. For reference, setting the page size to custom 100x100mm and exporting at zoom 100%, crop 0 gives me a PDF that MacOS reports to be 104,1mm x 104,1mm. See attached files

I get closest with Zoom set to 95% and mode Crop.

[davidjgraph]

give me a minute to release 24.7.5 and try again.

[gerwindehaan]

With Draw.io 24.7.5 it has been drastically improved and super usable (fixed in my use case). Now the results are accurate down to tenth-of-mms, e.g.

A4 210x297mm --> 209,9x29,71 mm in PDF as reported by MacOS (Finder / Preview / Quicklook)
custom 100x100mm --> 100,2x100,2 mm in PDF as reported by MacOS (Finder / Preview / Quicklook)

100mmx100mm-v24.5.7.drawio.pdf

[creeduk]

Confirmed.
It has been a while since I needed to edit that document type. I did today and I tested the latest version I had which is 24.7.8 (for this doc I had been going back to 24.1) and it worked the right size PDF. I then grabbed the current version v26.0.9 and it is still outputting the correct size PDF. Thank you for the fix, sorry for my delayed response.