New PDF exports break pdflatex

[antheas]

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Describe the bug I use drawio to produce graphs for scientific publications as part of my workflow. I create all of my figures, and export them as a multipage PDF. Afterwards, I use \includegraphics[page=X]{./res/X.drawio.pdf} to include the figures on my paper, so I can update the whole paper on one go.

Somewhere between 24.2.5 (which works) and 24.6.4 the PDF exporter was replaced and the new one breaks my workflow in 3 ways:

• PDF version is now 1.7. pdflatex expects 1.5 and shows multiple warnings
• Output size changed and is buggy: now has a border that even when 0% results in a different size
  • 7in figure is ~20pt larger now, 3.3in figure is ~7pt larger now, this means my old figures need to be resized now
  • Zoom option is broken: using 98% zoom lowers the size of the figure but the page size remains the same with a white border added on the right
• pdflatex now crashes with the following error:

  TeX capacity exceeded, sorry [PDF object stream buffer=5000000].
  <argument> ...shipout:D \box_use:N \l_shipout_box

  Which is probably due to the forced compression. From googling it seems that latex will crash this way if it processes a line that is larger than this, therefore perhaps a compressed blob.

Perhaps there should be a legacy/publication PDF exporter that does not do the border stuff and uses uncompressed PDF 1.5?

To Reproduce Unfortunately, I cannot provide the pdf and latex files to reproduce the issue (they are not public). However, if requested I can come up with something.

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

• draw.io version 24.6.4. Regression somewhere after 24.2.5.

Desktop (please complete the following information): Verified in both the Linux deb 24.6.4 version and the current website https://app.diagrams.net

Additional context Add any other context about the problem here.

[antheas]

n2.2 point is referenced here too https://github.com/jgraph/drawio/issues/4510

Also a default 27pt border is something I would rather not have to remove, but not a dealbreaker if its for new users.