USPTO PDF output compliance

[fledder]

Hi Pete, I am going to add issues for each of the changes I've made use of, so hopefully we can discuss whether and how to include them. Seems to be the way to do it in GitHub.

I'd like to add a "strict" or "efile" mode that would bring the output file into compliance with the requirements for efiling listed here: https://www.uspto.gov/patents-application-process/applying-online/efs-web-pdf-guidelines

This is generally easiest to achieve as a PDF/A compliant document. I have gotten a local version of uspatent.cls to output PDF/A using this guide: https://www.mathstat.dal.ca/~selinger/pdfa/

I think the easiest way to integrate this function with the existing setup might be to make an "efile" or "strict" mode alongside "draft" and "application".

Thoughts?

[fledder]

Per our conversation, I will be working on this feature first and will send a pull request when we have that all figured out.