pillow-netpbm

A Pillow plugin that bridges netpbm converter binaries, adding read support for dozens of legacy/obscure image formats.

Supported formats

Each format is registered as a Pillow image plugin when its converter binary is installed. Formats with magic bytes or match functions are detected by content; the rest fall back to file extension matching.

Format	Converter	Extensions	Detection	Tested
Amiga IFF ILBM	`ilbmtoppm`	.iff .ilbm .lbm	match	yes
Amiga Info Icon	`infotopam`	.info	magic	yes
ATK Raster	`atktopbm`	.raster	magic	yes
Atari Compressed Spectrum	`spctoppm`	.spc	ext	yes
Atari Degas	`pi1toppm`	.pi1	ext	yes
Atari Degas Elite	`pc1toppm`	.pc1	magic	yes
Atari Degas Low-Res	`pi3topbm`	.pi3	ext	yes
Atari Neochrome	`neotoppm`	.neo	ext	yes
Atari Uncompressed Spectrum	`sputoppm`	.spu	ext	yes
AutoCAD Slide	`sldtoppm`	.sld	magic	yes
AVS X Image	`avstopam`	.avs	ext	yes
CMU Window Manager Bitmap	`cmuwmtopbm`		magic	yes
CompuServe RLE	`cistopbm`	.cis	ext	yes
Fiasco Wavelet	`fiascotopnm`	.wfa .fco	magic	yes
FITS	`fitstopnm`	.fits .fit .fts	magic	yes
Garmin SRF	`srftopam`	.srf	magic	yes
GEM Raster	`gemtopnm`	.gem	ext	yes
Gould Scanner	`gouldtoppm`	.gould	ext	no
Group 3 Fax	`g3topbm`	.g3	ext	yes
HIPS	`hipstopgm`	.hips	ext	no
HP PaintJet	`pjtoppm`	.pj	ext	yes
Interleaf	`leaftoppm`	.leaf	magic	yes
JBIG	`jbigtopnm`	.jbig .jbg .bie	ext	yes
Lisp Machine Bitmap	`lispmtopgm`		magic	yes
MacPaint	`macptopbm`	.macp	ext	yes
MGR Bitmap	`mgrtopbm`	.mgr	match	yes
Microdesign	`mdatopbm`	.mda	match	yes
MRF	`mrftopbm`	.mrf	magic	yes
MTV Ray Tracer	`mtvtoppm`	.mtv	ext	yes
Palm DB Image	`pdbimgtopam`	.pdb	ext	yes
QRT Ray Tracer	`qrttoppm`	.qrt .dis	ext	yes
SBIG CCD Camera	`sbigtopgm`	.sbig	match	yes
SBIG ST-4 CCD Camera	`st4topgm`	.st4	ext	yes
Solitaire	`sirtopnm`	.sir	magic	yes
Sony Mavica 411	`411toppm`	.411	ext	yes
SPOT Satellite	`spottopgm`	.spot	ext	no
Sun Icon	`sunicontopnm`	.icon	match	yes
SVG	`svgtopam`	.svg	ext	yes
Usenix FaceSaver	`fstopgm`	.fs .face	match	yes
Utah RLE	`rletopnm`	.rle	magic	yes
Wireless Bitmap	`wbmptopbm`	.wbmp	ext	yes
X IMage	`ximtoppm`	.xim	ext	yes
X Window Dump	`xwdtopnm`	.xwd	match	yes
XV Thumbnail	`xvminitoppm`		magic	yes
Xerox Doodle Brush	`brushtopbm`	.brush	ext	no
YBM Face File	`ybmtopbm`	.ybm	magic	yes

Known issues

FIASCO multi-frame sequences: FIASCO supports video (multiple frames in one file). The bridge currently only handles single-frame images because fiascotopnm can't output multi-frame sequences to stdout. Video files will fail to open.

Excluded formats

The following netpbm converters are not supported by this plugin:

Converter	Format	Reason
`hpcdtoppm`	Kodak Photo CD	Pillow handles PCD natively
`cameratopam`	Camera RAW (NEF, CR2)	Segfaults on NEF files, "File seek failed" on CR2
`ddbugtopbm`	Diddle/DiddleBug sketch DB	Reads stdin only, writes multiple `.pbm` files to CWD
`pcdovtoppm`	Kodak Photo CD Overview	Shell script pipeline, not a single-binary converter
`bioradtopgm`	Bio-Rad Confocal	Magic at byte offset 54, beyond Pillow's 16-byte prefix limit; no known extension
`escp2topbm`	Epson ESC/P2 raster	No fixed header magic, no known file extension
`thinkjettopbm`	HP ThinkJet	No fixed header magic, no known file extension
`eyuvtoppm`	Encoder YUV	Headerless format, dimensions not in file
`yuvtoppm`	YUV 4:1:1	Headerless format, dimensions not in file
`yuy2topam`	YUY2 Video Frame	Headerless format, dimensions not in file
`psidtopgm`	PostScript Image Data	Requires manual width/height/bps args, not a standalone file format
`imgtoppm`	Img-whatnot	`.img` extension clashes with many formats; no test data, origin server defunct
`pktopbm`	TeX PK Font Bitmap	Writes multiple PBM files (one per glyph), not a single-image converter
`rlatopam`	Wavefront RLA	Broken on 64-bit: `sizeof(long)` misaligns header read, `numChan` never assigned
`zeisstopnm`	Zeiss Confocal (LSM)	TIFF-based format, Pillow handles it natively

Metadata

Release files for pillow-netpbm 0.2.1

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Source distribution for pillow-netpbm 0.2.1
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Built distribution (wheel)

Table of built distributions (wheels) for pillow-netpbm 0.2.1
File	Interpreter	ABI	Platform	Reset
pillow_netpbm-0.2.1-py3-none-any.whl 11.2 kB Apr 5, 2026 Without provenance	Python 3	none	any	Details

Total release size: 21.7 kB

Release files / pillow_netpbm-0.2.1.tar.gz

Download URL	pillow_netpbm-0.2.1.tar.gz
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Uploaded via	`twine/6.2.0 CPython/3.13.7`

Release files / pillow_netpbm-0.2.1-py3-none-any.whl

Download URL	pillow_netpbm-0.2.1-py3-none-any.whl
Size	11.2 kB
Tags	Python 3
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Upload date	Apr 5, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.13.7`

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