Envelopes

Envelopes provide an easy way for storing and mailing documents and are used across all business particularly for mailing documents. Envelopes come in various sizes although due to the popularity of A4 size paper most envelopes are designed to accommodate A4 size paper as it remains the industry-wide standard. Although, in the past envelopes used to be sealed by glue, nowadays self-sealing envelopes have replaced all other types of envelopes as these are easy to seal and don’t require any sort of glue for protecting documents. Envelope size is generally measured in millimetres or mm and international envelope sizes are expressed using an alphabetical scale where C4 corresponds to A4, C5 to A5 size paper.