Suggestions for Transparent-IO

The following packages have something in common with the package Transparent-IO. The packages are ordered in decreasing similarity.

Package transparent: Using a color stack for transparency with pdfTeX
Package secretx: Put security classification marks in a document
Package randtext: Randomise the order of characters in strings
Package newfile: User level management of LaTeX input and output
Package secret: Put security classification marks in a document
Package switcheml: Obfuscate email addresses (now obsolete)
Package tex-label: Place a classification on each page of a document
Package closefrm: Tidy up after reading a METAPOST file
Package morewrites: Always room for a new write stream
Package scrwfile: Use LaTeX .aux file in place of \newrite files
Package aspen: Simple crypto notation in LaTeX
Package censor: Tools for producing redacted documents
Package eq-pin2corr: Add PIN security to the Correct button of a quiz created by exerquiz
Package enigma: Encrypt documents with a three rotor Enigma
Package harvmac: Macros for scientific articles
Package resumemac: Plain TeX macros for resumés
Package letter1: Letter formatting macros
Package mlawriter: Write MLA style documents in Plain TeX
Package histyle: A HighStyle environment for TeX
Package automagic: Automatic counter numbering in Plain TeX
Package lextex: Typesetting legal documents using plain TeX
Package plain-widow: Three output routines that extend \plainoutput
Package plain-grid: Four sets of macros for typesetting on a baseline grid
Package koma-script: A bundle of versatile classes and packages
Package luacensor: Securely redact sensitive information using Lua
Package treedef: Macros to typeset trees in Plain TeX
Package hanoi: Tower of Hanoi in TeX
Package mnras-plain: Plain TeX macros for MNRAS
Package plcalendar: Plain macros for making nice calendars
Package timetable: Generate timetables
Package tugboat-plain: Plain TeX macros for TUGboat