Digression to explain the process.
Births and deaths were registered by local registrars, who each had their own register. When they were full they were sent to the district Superintendent for safe custody. Mostly that's where they still are, subject to reorganisation of districts.
Every quarter the registrars had to copy out all their entries onto loose sheets and send them off to the GRO, where they were bound into books and indexed.
The indexes only work for the GRO books. They didn't think to do it in a way that also worked for the local books. The Superintendents were supposed to index their registers but mostly did it badly. A lot of them are now reindexing online.
Anglican churches kept two identical registers, both signed at every wedding. One went to the Superintendent and the other to the Bishop.
Vicars also had to copy out all their entries quarterly for the GRO.
Civil and non-conformist marriages are like births and deaths. Earlier non-conformist marriages are in the civil books, as a registrar had to attend.
£9 to the GRO gets you the legal certified copy of their copy. Usually it's produced by some pre-Xerox copying technology, but if the result won't stand up in court, they resort to a typed transcription. Of course you don't get original signatures either way.
For Leeds you have two alternatives. The Superintendents are part of the YorksBMD project and have online indexes, eg
They can send copies from their original registers - not sure if you get a photocopy or written out.
Also, Ancestry has scanned images of Anglican baptisms, marriages and burials. The marriages are the originals belonging to the Bishop. You need a UK or worldwide sub or pay-per-view, or just ask on here for a lookup. Ancestry's indexing is terrible, but the YorksBMD marriage indexes work with these registers. Ancestry don't have civil or non-conformist marriages.
Baptisms often don't give the mother's maiden name, so you need the birth cert. But death certs are pretty useless compared to every other country.
For Anglican marriages, Ancestry looks like the best route to get the images and printouts once you've found the entries.