Method for producing multiple small custom envelope jobs using a sheet fed envelope machine. Multiple different envelope jobs are provided as stacks of sheets of envelope stock to a high volume envelope machine for processing into folded envelopes. Each envelope job stack includes a first sheet that, when processed by the machine, yields an envelope with visually distinctive edges. At the output of the envelope machine, the group of envelopes in an envelope job is indicated by the distinctive envelopes formed from first sheets.