Mulch

as we don't do no dig beds the only thing I can say is that we have used shredded paper in the past for our runner bean crops but that was dug in the ground and it did do the job because we had good bean crops

the only thing that comes to mind using shredded paper if it was spread over the plot would it be blown away come a strong windy day I suppose it depends on how fine you shredded it and the upside could be it would keep the weeds at bay but that's only my opinion other's mite not agree with my replies

Agree with Rowlandwells - think it would be very difficult in practice to prevent it drying out and blowing away on windy days (unless it rains every day for the next few months.  )

(Good 'brown' composting ingredient though.)

It will encourage slugs as it gets wet if you could get it to stay there. No dig is about composted mulches, so add it to your compost, is it a constant supply? If so can you get some fresh manure & mix it up with that to speed on the compost process.

Shredded paper could be wetted and then put into a compost bin.  It would need some green stuff with it to rot it quickly.

Smelly, but possibly effective answer.  Soak it with water and chuck some pelleted chicken manure in there.  It should only take a day or so for it to be sodden. Tip resultant mix into compost with as much green stuff as you can muster, cover it and see what happens.  If you don't let the heap dry out, that will be beneficial.  Chicken manure is very high in nitrogen and will help kick things off.

If you need green stuff to compost, you could cut any long grass around your allotment site and use that, or leafy tops of nettles, docks and the like.  Soaking anything you have doubts about for a few weeks makes sure it doesn't sprout, but is smelly.

I have been known to scavenge off our communal dumping ground at my site as well.  You often find people have dumped useful stuff.  I got a whole barrow load of cleared crop material the other week.  Before you write me off as completely sad, mad  or dangerous to know, I was put onto it by a fellow plot holder, who has discovered the same trick and was filling his barrow with the same intentions of adding it to compost bins

We have   started and add paper to the compost mix but not mag color paper.

I have been known to scavenge off our communal dumping ground at my site as well.  You often find people have dumped useful stuff.  I got a whole barrow load of cleared crop material the other week.  Before you write me off as completely sad, mad  or dangerous to know, I was put onto it by a fellow plot holder, who has discovered the same trick and was filling his barrow with the same intentions of adding it to compost bins

There are three plot holders on our site that give me all their green waste from both their plots and their gardens. You are not sad or mad, you can never get enough of the stuff. My wife brings home scrap paper from work to shred and add to my heaps as well.
Also, to help get paper composting quicker, never forget the sacred golden elixir....