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How to open .PGB files on Linux

To open .PGB files on Linux, right-click the file → Properties (or similar) and note the detected MIME type; look for image/vnd.globalgraphics.pgb.

Step-by-step instructions

  1. Right-click the file → Properties (or similar) and note the detected MIME type; look for image/vnd.globalgraphics.pgb.
  2. Try Open With… and select an image viewer; if none works, install software that can handle the registered subtype or convert it using a tool that supports image/vnd.globalgraphics.pgb.
  3. If your system misdetects the file, ensure shared-mime-info is up to date so *.pgb can be mapped correctly.

Common issues

No app can open the .PGB file

Many systems do not include built-in decoders for uncommon vendor-specific image subtypes like image/vnd.globalgraphics.pgb, so the file may be treated as unknown or unsupported.

  1. On Linux, check the detected MIME type; if it is image/vnd.globalgraphics.pgb, try a different installed image viewer/editor or a conversion workflow that supports that MIME type.
  2. If mobile devices cannot open it, transfer the file to a desktop OS and try opening/converting it there.

Wrong file association (opens in the wrong program)

The extension may be mapped incorrectly or an application may have claimed the extension without actually supporting the format.

  1. Change the default “Open with” association to a different image program and retry.
  2. On Linux, update/rebuild MIME associations (shared-mime-info based) so *.pgb maps correctly to image/vnd.globalgraphics.pgb.

File is detected as .PGB but still fails to render

The file may be corrupted, truncated, or not actually a PGB image despite the extension.

  1. Re-download or re-copy the file to rule out transfer corruption.
  2. Verify the file type using a tool that reports MIME type/content signature; if it is not image/vnd.globalgraphics.pgb, treat it according to the detected type instead of the extension.

Security note

.PGB is an image format (image/vnd.globalgraphics.pgb), so it is not meant to contain scripts or macros; the main risk is malformed-file vulnerabilities in image decoders/viewers.

Back to .PGB extension page