Use sumatrapdf-tool.exe or SumatraPDF.exe with the same arguments.
Available in pre-release 3.7

In the application #

To delete pages from a PDF in SumatraPDF:
  • open a PDF document
  • press Ctrl + K to open the command palette
  • select Delete Pages From PDF
Or:
  • open a PDF document
  • right-click to open the context menu
  • select Document > Delete Pages From PDF

From the command line #

To delete a page from a PDF using SumatraPDF:
sumatrapdf-tool clean input.pdf output.pdf 1-3,5-N
This deletes page 4 from input.pdf and creates output.pdf.
You can delete any number of pages by providing the range of pages to retain.
N is a special character meaning “last page”.
For all options, see sumatrapdf-tool clean.