"Document Size" for multiple images

[srush]

Since people are posting issues again, let me add one :)

I am having a lot of trouble keeping my images for my course at a standard size. The problem is that when I use SVG the images get rescaled in strange ways in different parts of the lecture.

For example the thickness of lines is set relative to the image size, but if I have 6 images all of different sizes the lines get resized differently. I can set a fixed height, put then sometimes the diagrams are really long and clip off the page.

I have some workarounds for this, but I feel like I am doing something incorrect, and I end up having to do hacks like "with_envelope" on each diagram to get it to look good.