Encoders / DecodersLesson 22Free preview
Quoted-Printable
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Summary
Quoted-Printable is an encoding for email that converts the byte outside the safe text character into the form =HH, i.e. the equals sign followed by two hexadecimal digits. This encoding is suitable for messages that mostly contain ASCII text, as most of the content remains legible. The long lines can be cut with a soft line break marked = at the end of the line. Quoted-Printable is different from Base64 and is usually used on a particular email body or header.
Key points
- Change the unsafe byte to =HH with two hexadecimal digits
- Suitable for text that is mostly ASCII-readable
- The mark itself is encoded into the 3D
- Soft line break marked with a mark = at the end of the line
- It's often used in MIME email content
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