about quoted-printable

About Quoted-Printable Encoding

Quoted-printable is a text encoding, used for converting text content to printable ASCII. The encoding is primarily used for transferring text in email messages, as mandated by the MIME standard.

The online quoted-printable encoder tool first encodes the input text in either UTF-8 or ISO-8859-1. The characters are then output according to this schema:

Character Result Comment
"=" (0x3D) =3D Special handling of the equal sign
" " (0x20) to "~" (0x7E) Unmodified Printable ASCII (7 bits)
Any other =XX Hexadecimal char code

Since quoted-printable does not in itself specify the text character encoding, it is important to specify this correctly when used. The online quoted-printable decoder tool attempts to auto-detect the text encoding.

See the Wikipedia article on quoted-printable for more info.