a2ps

Any to PostScript filter

agrep

agrep is a tool for the fast searching of text allowing for errors in the search pattern.

aiksaurus

A thesaurus lib, tool and database

an

Very fast anagram generator with dictionary lookup

ansifilter

antiword

free MS Word reader

antixls

It is used to prints out an XLS file with minimal formatting, or extracts the data into CSV format.

apvlv

a PDF Viewer which behaviors like Vim

asa

asciidoc

A text document format for writing short documents, articles, books and UNIX man pages

aspell

A spell checker replacement for ispell

atril

bact

Boosting Algorithm for Classification of Trees

barcode

barcode generator

bdf2psf

bibclean

BibTeX bibliography prettyprinter and syntax checker

bibletime

Qt4 Bible study application using the SWORD library.

bibutils

Interconverts between various bibliography formats using a common XML intermediate

binfind

binfind searches files for a byte sequence specified on the command line.

blahtexml

blogc

bogosort

A file sorting program which uses the bogosort algorithm

build-docbook-catalog

DocBook XML catalog auto-updater

c2ps

Generates a beautified ps document from a source file (c/c++)

calibre

Ebook management application.

capyt

catdoc

A convertor for Microsoft Word, Excel and RTF Files to text

cb2bib

Tool for extracting unformatted bibliographic references

cedilla

Utf-8 to postscript converter.

chasen

Japanese Morphological Analysis System, ChaSen

cherrytree

cmark

cmigemo

C/Migemo -- Migemo library implementation in C

code2html

Converts source files to colored HTML output.

convertlit

CLit converts MS ebook .lit files to .opf (xml+html+png+jpg)

convmv

convert filenames to utf8 or any other charset

cook

coolreader

cpdf

crf++

Yet Another CRF toolkit for segmenting/labelling sequential data

crm114

A powerful text processing tool, mainly used for spam filtering

csvfix

cuneiform

An enterprise quality OCR engine developed in USSR/Russia in the 90's.

cwtext

Text to Morse Code converter

dbacl

digramic Bayesian text classifier

dblatex

delta

Heuristically minimizes interesting files

dictd

Dictionary Client/Server for the DICT protocol

diction

Diction and style checkers for english and german texts

diff-pdf

diffpdf

ding

Tk based dictionary (German-English) (incl. dictionary itself)

discount

djview

djvu

DjVu viewers, encoders and utilities

docbook-dsssl-stylesheets

DSSSL Stylesheets for DocBook.

docbook-sgml-dtd

Docbook SGML DTD 4.2

docbook-sgml-utils

Shell scripts to manage DocBook documents

docbook-xml-dtd

Docbook DTD for XML

docbook-xml-simple-dtd

Simplified Docbook DTD for XML

docbook-xsl-ns-stylesheets

XSL Stylesheets for Docbook

docbook-xsl-stylesheets

XSL Stylesheets for Docbook

docbook2X

Tools to convert docbook to man and info

docx2txt

dos2unix

Convert DOS or MAC text files to UNIX format or vice versa

dvipng

Translate DVI files into PNG or GIF graphics

dvipsk

dvisvgm

ebook-tools

Tools for accessing and converting various ebook file formats.

editorconfig-core-c

enchant

Spellchecker wrapping library

enscript

powerful text-to-postscript converter

epspdf

epstool

Creates or extracts preview images in EPS files, fixes bounding boxes,converts to bitmaps.

evince

expander

Expander is a utility that acts as a filter for text editors.

extract_url

fb2edit

fblog

fbpdf

fbreader

E-Book Reader. Supports many e-book formats.

fictionup

flpsed

Pseudo PostScript editor

foliate

ghostscript-gpl

GPL Ghostscript - the most current Ghostscript, AFPL, relicensed.

gnome-doc-utils

A collection of documentation utilities for the Gnome project

gocr

An OCR (Optical Character Recognition) reader

grip

groonga

groonga-normalizer-mysql

grutatxt

A converter from plain text to HTML and other markup languages

gspell

gtkspell

Spell checking widget for GTK2

gtranslator

An enhanced gettext po file editor for GNOME

gv

gv is used to view PostScript and PDF documents using Ghostscript

hd2u

Dos2Unix text file converter

highlight

converts source code to formatted text ((X)HTML, RTF, (La)TeX, XSL-FO, XML) with syntax highlight

hnb

A program to organize many kinds of data in one place.

htag

random signature maker

html-xml-utils

A number of simple utilities for manipulating HTML and XML files.

html2text

A HTML to text converter

html401

DTDs for the HyperText Markup Language 4.01

htmlc

htmldoc

Convert HTML pages into a PDF document

htmlinc

HTML Include System by Ulli Meybohm

htmlmin

htmlrecode

Recodes HTML file using a new character set

htmltidy

Tidy the layout and correct errors in HTML and XML documents

htp

An HTML preprocessor

hunspell

Hunspell spell checker - an improved replacement for myspell in OOo.

hyperestraier

a full-text search system for communities

iso-codes

Provides the list of country and language names

itex2mml

jabref

GUI frontend for BibTeX, written in Java

jabref-bin

jo

kbibtex

A BibTeX editor for KDE to edit bibliographies used with LaTeX

kjots

krop

languagetool

lcdf-typetools

Font utilities for eg manipulating OTF

lesspipe

letterize

Generate English-plausible alphabetic mnemonics for a phone number

libabw

libebook

libepubgen

libetonyek

libexttextcat

libgepub

libgxps

liblangtag

libmspub

libmwaw

libnumbertext

libodfgen

libpaper

Library for handling paper characteristics

libqxp

libspectre

Library to render Postscript documents.

libstaroffice

libwpd

WordPerfect Document import/export library

libwpg

libwps

Microsoft Works format import library

libxmlpatch

A set of tools to create and apply patch to XML files using XPath

linuxdoc-tools

A toolset for processing LinuxDoc DTD SGML files

llpp

logmerge

lout

high-level language for document formatting

lv

Powerful Multilingual File Viewer

mandoc

manpager

master-pdf-editor

mathtex

MathTeX lets you easily embed LaTeX math in your own html pages, blogs, wikis, etc

mecab

Yet Another Part-of-Speech and Morphological Analyzer

mpage

Many to one page printing utility

msort

multitail

Tail with multiple windows.

mupdf

a lightweight PDF viewer and toolkit written in portable C

mythes

namazu

Namazu is a full-text search engine

nfoview

simple viewer for NFO files, which are ASCII art in the CP437 codepage

nuspell

o3read

Converts OpenOffice formats to text or HTML.

ocrad

GNU Ocrad is an OCR (Optical Character Recognition) program

odt2txt

odt2txt is a command-line tool which extracts the text out of OpenDocument Texts produced by OpenOffice.org, StarOffice, KOffice and others.

openjade

Jade is an implementation of DSSSL - an ISO standard for formatting SGML and XML documents

openpaperwork-core

openpaperwork-gtk

opensp

A free, object-oriented toolkit for SGML parsing and entity management

ots

Open source Text Summarizer, as used in newer releases of abiword and kword.

pandoc

paperwork

paperwork-backend

paps

par

pastebinit

pdf2html

Converts pdf files to html files

pdf2oo

Converts pdf files to odf

pdfarranger

pdfgrep

pdfjam

pdfnup, pdfjoin and pdf90

pdfminer

pdfsandwich

pdftk

A tool for manipulating PDF documents

peg-markdown

pelican

pep

General purpose filter and file cleaning program

pinfo

Hypertext info and man viewer based on (n)curses

po4a

Tools for helping translation of documentation

podofo

PoDoFo is a C++ library to work with the PDF file format.

poppler

poppler-data

Data files for poppler to support uncommon encodings without xpdfrc

ps2eps

Tool for generating Encapsulated Postscript Format (EPS,EPSF) files from one-page Postscript documents

ps2pkm

psiconv

An interpreter for Psion 5(MX) file formats

pspdftool

pspresent

A tool to display full-screen PostScript presentations.

pstotext

extract ASCII text from a PostScript or PDF file

psutils

PostScript Utilities

pytextile

A Python implementation of Textile, Dean Allen's Human Text Generator. Textile simplifies the work of creating (X)HTML.

q-text-as-data

qpdf

qpdfview

rarian

A documentation metadata library

recode

Convert files between various character sets

reed

This is a text pager (text file viewer), used to display etexts.

refbase

Web-based solution for managing scientific literature, references and citations

restview

rman

PolyGlotMan man page translator AKA RosettaMan

rnc2rng

rnv

A lightweight Relax NG Compact Syntax validator

robodoc

Automating Software Documentation

ronn

rpl

rpl is a UN*X text replacement utility. It will replace strings with new strings in multiple text files. It can work recursively

rtf2html

RTF to HTML converter.

sablotron

An XSLT Parser in C++

scdoc

scrollkeeper-dtd

DTD from the Scrollkeeper package

sdcv

sgml-common

Base ISO character entities and utilities for SGML

sgrep

Structured grep: tool for searching and indexing text, SGML,XML and HTML files and filtering text streams using structural criteria.

sigil

simple-fb2-reader

sloccount

Tools for counting Source Lines of Code (SLOC) for a large number of languages

spellutils

spellutils includes 'newsbody' (useful for spellchecking in mails, etc.)

stardict

sword

Library for Bible reading software.

sword-modules

A collection of modules for the SWORD project

t1utils

Type 1 Font utilities

tabler

A utility to create text art tables from delimited input

talkfilters

convert ordinary English text into text that mimics a stereotyped or otherwise humorous dialect

teckit

Text Encoding Conversion toolkit

teseq

tessdata_best

tessdata_fast

tessdata_legacy

tesseract

A commercial quality OCR engine developed at HP in the 80's and early 90's.

texi2html

Perl script that converts Texinfo to HTML

texlive

A complete TeX distribution

texlive-core

A complete TeX distribution

tidy-html5

tkinfo

Info Browser in TK

tkman

TkMan man and info page browser

tofrodos

text file conversion utility that converts ASCII files between the MSDOS format and the Unix format

tokyodystopia

A fulltext search engine for Tokyo Cabinet

trang

Multi-format schema converter based on RELAX NG

tree

Lists directories recursively, and produces an indented listing of files.

ttf2pk2

ttf2pt1

Converts True Type to Type 1 fonts

txt2man

txt2man, src2man (C only) and bookman convert scripts for man pages.

txt2pdbdoc

Text/HTML to Doc file converter for the Palm Pilot

txt2tags

A tool for generating marked up documents (HTML, SGML, ...) from a plain text file with markup

u2ps

unac

unac is a C library and a command line tool that removes accents from characters.

unpaper

a post-processing tool for scanned sheets of paper

unrtf

Converts RTF files to various formats

uudeview

uu, xx, base64, binhex decoder

vgrep

vilistextum

Html to ascii converter specifically programmed to get the best out of incorrect html.

wdiff

Create a diff disregarding formatting

webgen

A template-based static website generator.

wgetpaste

Command-line interface to various pastebins

wiki2beamer

Tool to produce LaTeX Beamer code from wiki-like input.

writerperfect

wscr

A Lightweight and Fast Anagram Solver

wv

Tool for conversion of MSWord doc and rtf files to something readable

wv2

Excellent MS Word filter lib, used in most Office suites

xapers

xapian-omega

xchm

Utility for viewing Microsoft .chm files.

xdvik

DVI previewer for X Window System

xhtml1

DTDs for the eXtensible HyperText Markup Language 1.0

xhtml11

xiphos

GTK+ based Bible study software, formerly gnomesword

xlhtml

Convert MS Excel and Powerpoint files to HTML

xlsx2csv

XML-Schema-learner

xml2

These tools are used to convert XML and HTML to and from a line-oriented format.

xml2doc

Tool to convert simple XML to a variety of formats (pdf, html, txt, manpage)

xmldiff

a tool that figures out the differences between two similar XML files

xmlformat

Reformat XML documents to your custom style

xmlstarlet

A set of tools to transform, query, validate, and edit XML documents

xmlto

A bash script for converting XML and DocBook formatted documents to a variety of output formats

xournal

Xournal is an application for notetaking, sketching, and keeping a journal using a stylus.

xournalpp

xpdf

yelp-tools

yodl

zathura

A highly customizable and functional PDF viewer based on poppler and GTK+

zathura-cb

zathura-djvu

zathura-meta

zathura-pdf-mupdf

zathura-pdf-poppler

zathura-ps

a2ps

htag

pstotext

agrep

html-xml-utils

psutils

aiksaurus

html2text

pytextile

an

html401

q-text-as-data

ansifilter

htmlc

qpdf

antiword

htmldoc

qpdfview

antixls

htmlinc

rarian

apvlv

htmlmin

recode

asa

htmlrecode

reed

asciidoc

htmltidy

refbase

aspell

htp

restview

atril

hunspell

rman

bact

hyperestraier

rnc2rng

barcode

iso-codes

rnv

bdf2psf

itex2mml

robodoc

bibclean

jabref

ronn

bibletime

jabref-bin

rpl

bibutils

jo

rtf2html

binfind

kbibtex

sablotron

blahtexml

kjots

scdoc

blogc

krop

scrollkeeper-dtd

bogosort

languagetool

sdcv

build-docbook-catalog

lcdf-typetools

sgml-common

c2ps

lesspipe

sgrep

calibre

letterize

sigil

capyt

libabw

simple-fb2-reader

catdoc

libebook

sloccount

cb2bib

libepubgen

spellutils

cedilla

libetonyek

stardict

chasen

libexttextcat

sword

cherrytree

libgepub

sword-modules

cmark

libgxps

t1utils

cmigemo

liblangtag

tabler

code2html

libmspub

talkfilters

convertlit

libmwaw

teckit

convmv

libnumbertext

teseq

cook

libodfgen

tessdata_best

coolreader

libpaper

tessdata_fast

cpdf

libqxp

tessdata_legacy

crf++

libspectre

tesseract

crm114

libstaroffice

texi2html

csvfix

libwpd

texlive

cuneiform

libwpg

texlive-core

cwtext

libwps

tidy-html5

dbacl

libxmlpatch

tkinfo

dblatex

linuxdoc-tools

tkman

delta

llpp

tofrodos

dictd

logmerge

tokyodystopia

diction

lout

trang

diff-pdf

lv

tree

diffpdf

mandoc

ttf2pk2

ding

manpager

ttf2pt1

discount

master-pdf-editor

txt2man

djview

mathtex

txt2pdbdoc

djvu

mecab

txt2tags

docbook-dsssl-stylesheets

mpage

u2ps

docbook-sgml-dtd

msort

unac

docbook-sgml-utils

multitail

unpaper

docbook-xml-dtd

mupdf

unrtf

docbook-xml-simple-dtd

mythes

uudeview

docbook-xsl-ns-stylesheets

namazu

vgrep

docbook-xsl-stylesheets

nfoview

vilistextum

docbook2X

nuspell

wdiff

docx2txt

o3read

webgen

dos2unix

ocrad

wgetpaste

dvipng

odt2txt

wiki2beamer

dvipsk

openjade

writerperfect

dvisvgm

openpaperwork-core

wscr

ebook-tools

openpaperwork-gtk

wv

editorconfig-core-c

opensp

wv2

enchant

ots

xapers

enscript

pandoc

xapian-omega

epspdf

paperwork

xchm

epstool

paperwork-backend

xdvik

evince

paps

xhtml1

expander

par

xhtml11

extract_url

pastebinit

xiphos

fb2edit

pdf2html

xlhtml

fblog

pdf2oo

xlsx2csv

fbpdf

pdfarranger

XML-Schema-learner

fbreader

pdfgrep

xml2

fictionup

pdfjam

xml2doc

flpsed

pdfminer

xmldiff

foliate

pdfsandwich

xmlformat

ghostscript-gpl

pdftk

xmlstarlet

gnome-doc-utils

peg-markdown

xmlto

gocr

pelican

xournal

grip

pep

xournalpp

groonga

pinfo

xpdf

groonga-normalizer-mysql

po4a

yelp-tools

grutatxt

podofo

yodl

gspell

poppler

zathura

gtkspell

poppler-data

zathura-cb

gtranslator

ps2eps

zathura-djvu

gv

ps2pkm

zathura-meta

hd2u

psiconv

zathura-pdf-mupdf

highlight

pspdftool

zathura-pdf-poppler

hnb

pspresent

zathura-ps