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Fetch Icon Fetch Help > Concepts > Automatic Upload Format

The Automatic upload format, like the Automatic download mode, tells Fetch to use the information available to it to make the best choice among a number of formats when uploading a Macintosh file to a server. The formats are: Text, Binary (Raw Data), or Zip Archive. (Automatic upload format never uses StuffIt X Archive, Gzipped Tar Archive, or Gzip when uploading a file.)

The goals of the Automatic upload format are to preserve any significant special Macintosh information in a file (preserving both data and resource forks if necessary), and after that, to properly transfer the file as a text or binary file.

When the Automatic upload format is selected, Fetch will choose the best format for each file by following these rules in order:

  • Fetch determines if the file is a text file or a binary file. It uses information such as filename extension and the file's Finder type to make this determination.
  • If a file is determined to be a text file, Fetch transfers the file in Text format, discarding any resource fork the file may have. Line ending conversion will take place on FTP connections (but not SFTP), and an extension may be appended to the file's name, depending on the Add filename extension when uploading Text files preference.
  • If the file is determined to be a binary file, Fetch checks to see if the file has a resource fork.
  • If the file has a resource fork, Fetch checks to see if the resources are significant. Resources not regarded as significant mostly consist of Finder custom icons and resources added to JPEGs and GIFs by Photoshop.
  • If the file has no significant resources, or no resource fork at all, Fetch transfers the file in Binary (Raw Data) format. An extension may be appended to the file's name, depending on the Add filename extension when uploading Other files preference.
  • If file has a resource fork with significant resources, Fetch transfers the file in Zip Archive format, so that the resources are preserved.

If you want to preserve the resources of a file that Fetch would normally discard when using Automatic upload format (such as Photoshop resources), you will have to temporarily choose another format, such as MacBinary or Zip Archive, from the Remote > Format menu, and then upload that file.

See the upload formats help topic for more information about each format.

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