DocHub 2.0.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software lies within Internet & Network Tools, more precisely Browser extensions. This free software for Mac OS X is an intellectual property of DocHub LLC. We recommend checking the downloaded files with any free antivirus.
From the developer:
DocHub helps you edit, send and sign PDF documents online for free. The application streamlines document signing, distribution, and form completion. You can annotate pages, insert images, create or manage fields, whiteout text, merge PDFs and more. You can sign PDF and other documents with DocHub eSignatures and Sign Requests.
You may want to check out more software for Mac, such as Bookit Dock Menu, SafariCookieCutter or Choosy, which might be similar to DocHub.