[Slackbuilds-users] Repair a corrupted .pdf

[Rich Shepard]

I have a .pdf file 2,981,542 bytes in size created in 2012 that will not
open using mupdf or xpdf:
$ xpdf exploration-summary-rpt.pdf 
Syntax Error: Couldn't read xref table
Syntax Warning: PDF file is damaged - attempting to reconstruct xref table...
Syntax Error: Couldn't find trailer dictionary
Syntax Error: Couldn't read xref table

A web search found mutool but it's not in the SBo repo. It's available on
Arch. Are there other options for repaing the file or other options for
building it for use on Slackware?

TIA,

Rich