I know this is a HUGE ask because color detection is incredibly difficult to get right, and honestly it would probably require third party components since building from scratch would be a crazy effort, but I think it could be a huge boost for controlling the size of documents.
Currently, when we import PDF documents through something like Import Agent we only really have two options: All color/grayscale, or all monochrome.
In our environment we often get documents that are hundreds or even thousands of pages long and we have to bring everything in with color because there's usually at least one page that needs to be color/grayscale.
Our scanned images end up being way more efficient with regard to size because our scanning software has some really great color detection software that can generate monochrome, grayscale, or color pages on a page-by-page basis using settings we refined through a lot of testing.
If Laserfiche had something similar internally, it would close that gap and be a huge help because we could apply a similar technique to documents that come from outside sources in an electronic format.
We can manually remove color with PhotoDocs, but that is incredibly time consuming so we just don't have the resources to dedicate and can only really go that route when something is so large it causes problems.
(Speaking of PhotoDocs, it would be great if you could zoom in more on the pages because at the moment it is incredibly difficult to really gauge the quality of the page after you remove color since it's so small)
I can see this being added to the DCC (maybe as an option in page generation in addition to a standalone option) since it may or may not be something you'd want to run locally, but it would be a substantial benefit in any form.
As time goes on more and more of our documents start out in an electronic format so the average sizes have been growing rather quickly, sometimes leaving us with documents as large as 1.5GB when exported back to PDF.
On average, automated detection that converts eligible pages to monochrome or grayscale can reduce our document sizes by 75% or more, depending on the contents, so I know we would jump at the chance for an automated tool.