ImageText-based

`image/x-portable-anymap`

PNM (Portable Anymap)

Reference for image/x-portable-anymap, the MIME type for PNM family of simple image formats used in image processing.

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Expected extensions: .pnm

HTTP Content-Type Header

HTTP Header

Content-Type: image/x-portable-anymap; charset=utf-8

Associated File Extensions

.pnm

Quick Facts

MIME Type	image/x-portable-anymap
Category	Image
Type	Text-based (human-readable)
Extensions	.pnm

Common Usage

PNM is a family of simple image formats (PBM, PGM, PPM) used in academic image processing, Unix pipelines, and as intermediate formats in image conversion tools. Their simplicity makes them easy to read and write programmatically without external libraries.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.pnm" type="image/x-portable-anymap">

<!-- Or for script/media elements -->
<script type="image/x-portable-anymap" src="file.pnm"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('image/x-portable-anymap');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'image/x-portable-anymap' });

nginx

# nginx.conf — add to types block or use default
types {
    image/x-portable-anymap  pnm;
}

# Or set for a specific location
location /api/ {
    default_type image/x-portable-anymap;
}