Convert Text files to Image format.

txt2png-1.1.sh

#!/usr/bin/env bash

# (This version is specific for my special use case of personal documents.)
# Version 1.1
# 2025-04-07
#
# Convert Text files to Image format.
#
# Usage:
#     txt2png desc1.txt desc2.txt
#     txt2png *.txt

# Use pango-list to list available fonts.

cleanup() {
    local path
    path="${1}"

    # Remove last whitespace character of each line.
    sed -i 's/ $//g' -- "${path}"

    # Delete lines that are image filenames only, as these are just artifacts
    # from manual copy/paste manouver.
    sed -i -E '/^[a-zA-Z]+\.(png|gif|jpg)$/d' -- "${path}"

    # I added this simple string at the beginning of some files. Its not
    # needed for the created image.
    sed -i '/^sonicretro$/d' -- "${path}"

    # From Metroid, unneeded copy paste parts.
    sed -E -i '/^Forum Thread:.+$/d' -- "${path}"

    cat -- "${path}" | tr '\n' '\r' >>"${path}.tmp2"
    mv -f -- "${path}.tmp2" "${path}"

    sed -i -E \
        -e 's/(\(Note:)\r+/\1  /' \
        -e 's/(From.+:)\r+/\1  /' \
        -e 's/(Hack Name:)\r+/\1  /' \
        -e 's/(Hack of:)\r+/\1  /' \
        -e 's/(Platform:)\r+/\1  /' \
        -e 's/(Released by:)\r+/\1  /' \
        -e 's/(Language:)\r+/\1  /' \
        -e 's/(Status:)\r+/\1  /' \
        -e 's/(Patch Version:)\r+/\1  /' \
        -e 's/(Last updated:)\r+/\1  /' \
        -e 's/(Type of Hack:)\r+/\1  /' \
        -e 's/(Downloads:)\r+/\1  /' \
        -e 's/(Awards:)\r+/\1  /' \
        -- "${path}"

    cat -- "${path}" | tr '\r' '\n' >>"${path}.tmp2"
    mv -f -- "${path}.tmp2" "${path}"

    # Compress multiple blank lines into one line.
    sed -i '/^$/N;/^\n$/D' -- "${path}"

    # Remove the beginning and end of file empty lines only.
    sed -i -e '/./,$!d' -e :a -e '/^\n*$/{$d;N;ba' -e '}' -- "${path}"
}

font_name='Liberation Mono'
font_size='16'

convert() {
    local text_path
    local image_path
    text_path="${1}"
    image_path="${2}"

    pango-view \
        --font "${font_name}, ${font_size}" \
        --antialias subpixel \
        --hinting auto \
        --hint-metrics on \
        --line-spacing 0.95 \
        --width 480 \
        --height 640 \
        --no-display \
        --output "${image_path}" \
        -- "${text_path}"
}

for file in "${@}"; do
    text_tmp="${file}.tmp"
    png_out="${text_tmp%.txt.tmp}.png"

    echo "${file}"
    cp -- "${file}" "${text_tmp}"
    cleanup "${text_tmp}"
    convert "${text_tmp}" "${png_out}"
    rm -- "${text_tmp}"
done

txt2png.sh

#!/usr/bin/env bash

# Convert Text files to Image format.
#
# Usage:
#     txt2png desc1.txt desc2.txt
#     txt2png *.txt

for file in "${@}"; do
    pango-view \
        --font mono \
        --no-display \
        --width 320 \
        --height 480 \
        --output "${file%.txt}.png" \
        -- "${file}"
done

Note, the new version 1.1 is for my personal use case. It includes some document cleanup from my personal copy/paste of Romhack descriptions from the internet. Also the settings are set to make the generated image texts better readable on my Steam Deck too.