recoll binary package in Ubuntu Bionic amd64

 This package is a personal full text search package is based on a very strong
 backend (Xapian), for which it provides an easy to use and feature-rich
 interface.
 .
 Features:
  * Qt-based GUI
  * Supports the following document types (and their compressed versions)
   - Natively: text, html, OpenOffice files, maildir and mailbox (Mozilla and
     IceDove mail) with attachments, pidgin log files
   - With external helpers: pdf (pdftotext), postscript (ghostscript), msword
     (antiword), excel, ppt (catdoc), rtf (unrtf)
  * Powerful query facilities, with boolean searches, phrases, filter on file
    types and directory tree
  * Support for multiple charsets, Internal processing and storage uses Unicode
    UTF-8
  * Stemming performed at query time (can switch stemming language after
    indexing)
  * Easy installation. No database daemon, web server or exotic language
    necessary
  * An indexer which runs either as a thread inside the GUI or as an external,
    cron'able program

Source package