It would be nice to add a robust command-line interface which likewise would open up batch operation. Convert webpage would be nice also.

Convert webpage also. Sample batch/command lines:

pdfconvert pdf_fn#1 -x1,2,5,7 +c1,2,pdf2#1[1,2,3] +c5,7 -opdf_new

the above would take pdf_fn#1 Xtract pgs 1,2,5,7 (to pdf_fn#1-1,1-2,l-5,1-7) combine [implied pdf_fn#1-]1,2, then pdf2#1-1,-2,-3, then [implied pdf_fn#1-]5 and 7, send all to pdf_new.pdf

Even better would be to add metatags in the PDF file actually naming pages/sections so that standard batch files may be created for updating user manuals as text gets added. The thought here is that one has a bsic manual, then the advanced manual which would use some of the sections from the basic manual and some of the sections from some other manual. Hard-coding pages would need updated every time the documentation is updated but using section names would only require updates to new additions.