---
name: "ptekf"
section: "1"
platform: "linux"
package: "texlive-doc"
version: "2026.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/ptekf"
---

# ptekf(1)

pTeX-enc Kanji Filter

## NAME

ptekf - pTeX-enc Kanji Filter

## SYNOPSIS

**ptekf** \[*options*\] \[**--**\] *in\_file1* \[*in\_file2 ...*\]

**ptekf** --help \| --version

## DESCRIPTION

**ptekf** is a simple character encoding converter for input/output files of pTeX-family programs. This utility can be used to check procedures of character encoding conversion and guessing encoding which are impremented in pTeX-family i.e. **(e)(u)ptex**, **(u)pbibtex**, **mendex** and so on.

## OPTIONS

- **-j**

  Specify output encoding ISO-2022-JP.

- **-s**

  Specify output encoding Shift\_JIS.

- **-e**

  Specify output encoding EUC-JP.

- **-u**

  Specify output encoding UTF-8.

- **-J**

  Specify input encoding ISO-2022-JP.

- **-S**

  Specify input encoding Shift\_JIS.

- **-E**

  Specify input encoding EUC-JP.

- **-U**

  Specify input encoding UTF-8.

- **-g** **--guess**

  Guess the input encoding (no conversion).

- **-G**

  Guess the input encoding and output to stdout or files.

- **-b** **--buffer**

  Output internal buffer without code conversion.

- **-v** **--version**

  Print version number.

- **-h** **--help**

  Print help message.

- Default input/output encoding depends on kpathsearch parameters **PTEX\_KANJI\_ENC** and **guess\_input\_kanji\_encoding**.

  ## SEE ALSO

[eptex(1)](/eptex/1.md), [euptex(1)](/euptex/1.md), [pbibtex(1)](/pbibtex/1.md), [upbibtex(1)](/upbibtex/1.md), [mendex(1)](/mendex/1.md)

## AUTHOR

This manual page was written by Japanese TeX Development Community \<https://texjp.org\>. For more information, see GitHub repository \<https://github.com/texjporg/tex-jp-build\>.