Opening An App From Unidentified Developer ?

Discussion in 'iMac' started by Robert4, Apr 30, 2018.

  1. Robert4 macrumors 6502

    Apr 20, 2012

    I downloaded a free .pdf editor, Scribus, from

    But, a message came up that the Mac won't open it up due to
    it being from an unidentified source / developer, etc.

    Guess it has to do with a security setting, somewhere.

    a. Where do I go, please, and what do I change, to allow the opening of ?

    b. And, once that is done, do I need to keep the .dmg file that is now on my desktop from them ?

    c. SourceForge "reputable" ?

  2. JustMartin macrumors 6502a

    Feb 28, 2012
    System Settings/Security and then check to allow apps from trusted developers.
    No need to keep the disk image (dmg) file after you've done the installation
    Sourceforge is pretty reputable
  3. whooleytoo macrumors 604


    Aug 2, 2002
    Cork, Ireland.
    You can also open it by right-clicking (or Ctrl-clicking) the app and selecting Open. This creates an application-specific exception to the security rule. It might be a bit safer than turning off the security check completely.
  4. mpe macrumors 6502

    Sep 3, 2010
    sourceforge is NOT a reputable source. They used to be, but that was a decade ago. Nowadays, they are known for repacking archives and bundling malware/adware and they have seen an exodus of software projects hosted on their site.

    The error is displayed for a good reason. I would always think twice before installing unsigned software (unless you absolutely trust the developer and his site and double checked the checksum of the binary).
  5. gnasher729 macrumors P6


    Nov 25, 2005
    You think you downloaded Scribus, but you don't know it. All you know is that you downloaded some app created by a developer who not only isn't known to Apple, he isn't known at all. Even if there is a honest-to-god software developer somewhere who created an honest-to-god app named Scribus, you don't know if that is what you downloaded.

    And if you downloaded a malware app, anything can happen.
  6. TiggrToo macrumors demi-goddess


    Aug 24, 2017
    Out there...way out there
    That was then. In 2016 they were brought buy the BIZX, LLC who immediately terminated the DevShare program that was the source of all this.
  7. mpe macrumors 6502

    Sep 3, 2010
    #7 changed owners again and new guys claim they terminated the programme where they deliberately bundled malware to downloads which was their previous business model. That's good for them. But still, my trust in that site is broken, I would not consider it as a reputable source. As a developer would never host anything there and as a customer would never download an unsigned binary from that site again.

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