Type 1 licensing did it cover 'print on demand'?

So here's the issue, in common with many other publishers we maintain a 'reprints' dept. Traditionally publishers made minor changes to 'standing pages' such that the pages did not require re make up, for some publishers usually producing works of reference this is where the real profit is made.

Replacing a T1 font with an OT or TT version is not always possible as there are often 'minor' changes to the font metrics that cause reflow.

The standing pages are held in 'old' versions of applications - both InDesign and Quark have at some stage revised the H&J engines.

Both InDesign and Quark have also at times made changes to graphic (object) handling which can cause line and page reflow.

So I have to maintain 'old' versions of both the applications and operating systems.

Now a possible solution to the reprints issue has been suggested, apply the minor corrections and updates, create PDF's of the sections/pages/titles then make them available to subscribers as print-on-demand addendums.

As I recall Adobe T1 fonts were licensed for print and view and primarily for output/print by a repro house or printer, but I need to know whether the standard license covered 'print on demand'? The online licensing info covers the current font technology.

The PDF's would use a subset of fonts and would be locked.

The PDF's would not be publicly available, they would only be available to the clients who committed to buying a work of reference over an extended period - who have now become subscribers.

Cheers

Phil