In the purest sense, embroidery digitizing is the process of converting any artwork, images, text, any sort of design into an embroidery design; one that the embroidery machine can understand and execute onto a garment. Just like the traditional embroiderers, digital embroideries also need artisans of their own kind called Digitizers or Punchers; highly skilled individuals who are able to turn any design, be it logo, photo, illustration of any kind into a set of specific commands through various software which are later converted into specific machine-readable format, to be executed, i.e. embroidered by the machine on a specific garment.
An embroidery outline format is a proprietary format used when creating a digitized design. We have the ability to save the designs in the outline format as well as a stitch file format. An outline format will give you considerably more capabilities when editing, sizing or making any other setting changes to a digitized design. Note that outline formats can only be opened with the proprietary software with which they originate from. For example, a PXF file is the Pulse outline format can only be opened with a Pulse (DGML) software.
Trimmers can be found on most modern embroidery machines. The trimmer is a blade which automatically cuts thread between colors, stops, and other parts of the design as it sews. If your machine has trimmers, leave this setting on unless you would prefer the design be set up otherwise.