jpegtopnm

converts JFIF/JPEG images to Netpbm PNM format

TLDR

Convert JPEG to PNM

$ jpegtopnm [image.jpg] > [image.pnm]

Convert with EXIF extraction

$ jpegtopnm -exif=[exif.dat] [image.jpg] > [image.pnm]

Repair corrupted JPEG

$ jpegtopnm -repair [corrupted.jpg] > [output.pnm]

Display comments from JPEG

$ jpegtopnm -comments [image.jpg] > /dev/null

SYNOPSIS

jpegtopnm [options] [filename]

DESCRIPTION

jpegtopnm converts JFIF/JPEG images to Netpbm PNM format. Outputs PPM for color images or PGM for grayscale. Part of the Netpbm toolkit, it uses the Independent JPEG Group's library for decoding.

PARAMETERS

-repair

Attempt to salvage data from corrupted JPEG.

-exif file

Extract EXIF data to file.

-comments

Print comments from JPEG file.

-dct method

DCT method: int, fast, or float.

-multiple

Read multiple images from stream.