---
name: "g3tolj"
section: "1"
platform: "linux"
package: "mgetty-fax"
version: "1.2.1-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/g3tolj"
---

# g3tolj(1)

converts a Group 3 fax file into a printable HP-PCL file

## NAME

g3tolj - converts a Group 3 fax file into a printable HP-PCL file

## SYNOPSIS

**g3tolj** \[**-kludge**\] \[**-reversebits**\] \[**-scale N**\] \[**-aspect N**\] \[**-resolution 75\|100\|150\|300**\] \[**-compress 0\|1\|2**\] \[**-pagelength N**\] \[**-duplength N**\] \[*g3file*\]

## DESCRIPTION

Reads a Group 3 fax file (raw or digifax) as input. If no filename is given, stdin is used. Produces a printable HP-PCL file as output.

## OPTIONS

- **-kludge**

  Tells *g3tolj* to skip the first lines for synchronisation.

- **-reversebits**

  Tells *g3tolj* to interpret bits least-significant first, instead of the default most-significant first. Apparently some fax modems do it one way and others do it the other way. If you get a whole bunch of "invalid code" messages, try using this flag.

- **-scale N**

  Scale the output to match the printer resolution and paper size, the default of 1.40 will do in most cases.

- **-aspect N**

  Scale the output to match the printer resolution and paper size, the default of 1.0 will do for high resolution faxes, 2.0 will do for low resolution faxes.

- **-resolution 75\|100\|150\|300**

  Selects print resolution. The default is 300.

- **-compress 0\|1\|2**

  Selects compression method for the print output. 0 = none, 1 = rll, 2 = tiff. The default is 0.

- **-pagelength N**

  Defines the pagelength in inches, the default is 10.95. After this length a pagebreak is generated and the last part of the previous page is duplicated on the next page

- **-duplength N**

  Defines the length in inches that will be duplicated after a pagebreak, The default is 0.7.

## REFERENCES

The standard for Group 3 fax is defined in CCITT Recommendation T.4.

## BUGS

Please report bugs to chel@vangennip.nl

## SEE ALSO

[pbmtog3(1)](/pbmtog3/1.md), [pbm(5)](/pbm/5.md), [g3cat(1)](/g3cat/1.md), [sendfax(8)](/sendfax/8.md), mgetty(1)

## AUTHOR

*g3tolj* is Copyright (C) 1994 by Chel van Gennip, \<chel@vangennip.nl\>. Sources of  *g3topbm* and *pbmtolj* programs in Jef Poskanzers *pbmplus* package have been used, but al lot of code has been changed or added to  simplify its use for printing faxes. Value added: low use of memory, fast  scaling, printing of long faxes with page breaks, print file compression (by John Watson)