---
name: "jbig2"
section: "1"
platform: "linux"
package: "jbig2"
version: "0.30-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/jbig2"
---

# jbig2(1)

encoder for JBIG2

## NAME

jbig2enc - encoder for JBIG2

## SYNOPSIS

**jbig2** \[*options*\] *\<input filenames*...*\>*

## OPTIONS

**-b** \<basename\>: output file root name when using symbol coding

**-d** **--duplicate-line-removal**: use TPGD in generic region coder

**-p** **--pdf**: produce PDF ready data

**-s** **--symbol-mode**: use text region, not generic coder

**-t** \<threshold\>: set classification threshold for symbol coder (def: 0.92)

**-w** \<weight\>: set classification weight for symbol coder (def: 0.50)

**-T** \<bw threshold\>: set 1 bpp threshold (def: 200)

**-G** **--global**: use global BW threshold on 8 bpp images;

-

  the default is to use local (adaptive) thresholding

**-r** **--refine**: use refinement (requires **-s**: lossless)

**-O** \<outfile\>: dump thresholded image as PNG

**-2**: upsample 2x before thresholding

**-4**: upsample 4x before thresholding

**-S**: remove images from mixed input and save separately

**-j** **--jpeg-output**: write images from mixed input as JPEG

**-a** **--auto-thresh**: use automatic thresholding in symbol encoder

**-D** **--dpi**: force dpi

**--no-hash**: disables use of hash function for automatic thresholding

**-V** **--version**: version info

**-v**: be verbose