I am trying to crop an SVG-File to its bounding box.

With the Inkscape GUI it would be the following procedure:
1. start Inkscape GUI
2. load the SVG file
3. Page Properties (Shift+Ctrl+D)
4. resize page to content
5. save the SVG file
6. exit Inkscape

However, starting Inkscape GUI takes too long... and it should be automated in a batch process for many files.

There is the Inkscape command line, but it seems I don't know how to use the option "-D" --export-area-drawing properly.
Whereas
seems to create a cropped PNG file, however, with
no file will be created.

Ok, then let's try another approach. As I understand, with the command line
you can get a list of the coordinates, widths and heights of all objects. The first line should correspond to the bounding box of the complete drawing. So, I could somehow use these values to modify the SVG-file with a Python script to get it cropped as desired.

However, as I understand it's not sufficient to simply change the coordinates of the SVG entry, because in Inkscape I don't get a page size which fits the content.

Does anybody know about a Python-Script to do the proper changes or at least can me point to the right information sources which part of the SVG needs to be modified and how?
Other than a Python script wouldn't help me too much because I need to couple it to another software where Python is already available.

In the end, it probably would be even better to completely avoid the start of Inkscape and do it completely in Python?
Thank you for any hints.

There should be a 'verb' available in the verb list for this. Please look for it there.

(but it will probably still need the GUI - however, if you want to do this for multiple files, you can use the interactive Inkscape console. That'll make it faster.)

thanks, @Moini, yes, -verb will require GUI .
Sorry, neither Inkscape GUI nor Inkscape console are practical at all in my case...

Yeah, then you're out of options. Did you try the correct verb?

Hi.

Have a look at this: https://github.com/skagedal/svgclip

thanks @ragstian, this looks like the second procedure from above using the command line "inkscape -S File.svg" ...
However, python-rvsg, python-cairo are not installed on my system, and what I found so far it seems to be a bit more complicated for windows systems since you need a wrapper. At least that's what I found on the first go. Since I am a beginner in Python it will me take a while to figure this out...
I also don't see what version of Python this script is for... there seems to be incompatibilities between 2.3, 2.7 or 3.6... I have 3.6 installed, but since Inkscape uses 2.7, the script is probably for 2.7... well, I will find out...
Even better would be of course to completely skip Inkscape and do it all in Python. But I don't know what is needed to calculate the SVG bounding box without Inkscape.