You are right. I didn't understand what you are doing.
Are you scanning the WPSs and then converting them to pdf?
You could continue to scan them and then import the file to a MSWord document as a "picture" or pdf. The MSWord file can have a header containing the company logo, name, WPS, revision, and page number that will be on every sheet. That's how I handle the paperwork I do for my client. When everything is completed I print them as pdf to keep anyone from monkeying with them. I still have the original WPS as a MSWord file so I can revise the WPS should it become necessary at a future date. The PQRs are never changed unless it is to reflect a change in ownership or the code, but that isn't something done frequently.
This is the ideal time to make any editorial changes to the WPS you find necessary. You may be able to consolidate some of the WPSs to reduce the paperwork burden and to simplify the system.
I would note the changes as a revision listed on the last page of the WPS. I maintain a revision history on the last page of my WPSs so I have ready access to what was changed and why.
It sounds like your management has a good business plan if you are doing good financially in the current business climate. Even with a good plan, management needs competent workers to execute the plan.
I've attached the first page of a WPS I recently wrote as an example of the "header" that contains the type of information you might want on every page. If you work with MSWord, the process is pretty straight forward. You notice I don't try to cram everything on to one page. I find that you have to make the test so small it is difficult to read and it looks cluttered. Once a format is adopted, the welders know just where to look for the information they need to set up the job. Also, it is easy to split the columns to include more than one welding process or a combination of filler metals when the root is deposited with one filler metal and the fill passes are deposited with a different process or filler metal.
The Annex system allows me to provide additional details so I can address code or project requirements in detail. The welder only has to access the annex if he needs that information and it isn't adding to the bulk of the basic WPS. From the first page of the WPS you can see that Annex A-P8 lists all the base metal specifications that can be welded with this WPS. The annex also includes specific preheat requirements based on the thickness of the base metal if preheat is required as in the case with carbon and low alloy steels. The listing of base metal specifications can be expanded to include additional (P8 or M8 austenitic stainless steels in this case) as the need arises. Other annexes are used to address assembly, joint details (various grooves), and acceptance criteria (so the welder knows what the requirements are for the classification of the work being performed).
Best regards - Al