Page Range feature

[krainboltgreene]

It would be extremely helpful to be able to target a specific set of pages for slice converting but also for updating previous attempts at converting (say for a page that was incorrectly or poorly converted).

I would imagine the syntax as (for a document that is 26 pages long):

python convert_single.py --page-range 1,10 a.pdf b.md

This would convert pages: 1,2,3,4,5,6,7,8,9,10

python convert_single.py --page-range 5,6 a.pdf b.md

This would convert pages: 5,6

python convert_single.py --page-range 24, a.pdf b.md

This would convert pages: 24,25,26

python convert_single.py --page-range -4,15 a.pdf b.md

This would convert pages: 23,24,25,26,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15

[krainboltgreene]

I can contribute this with some minor guidance.

[VikParuchuri]

This wouldn't be hard to add. You can look at the max_pages flag as an example. Basically it's passed into this function to restrict the page count. You could instead pass in an array of page numbers.