Rendering pdf from placed images larger than 32,000px

How is the floor map being installed? I would assume it is being printed on vinyl specially made for floor graphics installations. The roll vinyl is available at widths only so wide. Obviously the whole thing will have to be installed in strips or panels. It can't be printed or installed in just one piece.

With material width limits in mind, is it possible to divide the map up into smaller segments?

Large format RIP applications have their own internal tricks they do for scaling raster-based imagery. But those re-sampling tricks work only so well. For elements like logos, type and other line work it's just best to create those elements as vector-based artwork (whenever possible). Vector-based elements will print at the maximum resolution the printer can output.

Regarding raster-based imagery resolutions in large format printing, it's all a push-pull balance. The intended viewing distance should define the resolution level of raster-based elements. Billboards are usually viewed from significant distances. Even 72ppi at full size would be overkill for something like a 48' X 14' billboard installed outside the right of way of a super highway. I like 72ppi for vehicle wraps; I might go with 96ppi if it's a smaller vehicle. A movie poster one sheet can have 150ppi photo imagery (but the smaller lettering and logos typically at the bottom needs to be vector).

Billboard printing companies are more accustomed to receiving Illustrator AI files or Illustrator-generated PDFs. InDesign can generate very good PDFs. Most corporate branding work is created using Adobe applications. Leading large format RIP applications have Adobe certified PDF print engines. Printing results are going to be more predictable when handling PDFs generated by Adobe applications.

PDFs made from Canva? Vomit. I'm really disliking this new trend of D-I-Y graphic design since it frequently involves things like Canva. It's just another extra level of frustration added to the other long existing, frequent issues with customer provided artwork. Most people don't understand the difference between pixel-based graphics and vector-based graphics. And they don't appear to be interested in learning the difference either (until they start paying our service charges to fix/re-build their artwork). Then we have the more basic problem of so many people not understanding basic geometry. Currently I'm hung up on a replacement face project for a 432" X 126" static billboard face; the client gave us the ad artwork as a low-res JPEG image that doesn't even fit that aspect ratio. He basically laid out the thing in Photoshop on a letter sized page.

Here's another problem when customers try to design their own billboard ad files. They very rarely ever incorporate any bleed into the artwork, much less the right amount of bleed. Not all billboard structures are the same. The graphics are typically printed onto flexible face material similar to banner material. The extra bleed area is usually for pole and pocket systems for the billboard face installation. The average is a 6 inch bleed around the perimeter of the active face area. For example, a 30' X 10' billboard face would need an art file 31' X 11'. Additionally, any important elements, such as lettering, needs to not be hugging the edge of the face. We don't live in a perfect world. So there has to be some "safe title area" style wiggle room. Plus a good billboard face design should have enough white space so the design doesn't look cramped.