move move old scripts

pdf_tools/pdf2img.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# Convert the first page of a PDF to a JPEG image.
+# Usage: ./pdf_to_jpg.sh <file.pdf>
+
+set -euo pipefail
+
+if [[ $# -ne 1 ]]; then
+    echo "Usage: $0 <file.pdf>"
+    exit 1
+fi
+
+INPUT_PDF="$1"
+
+if [[ ! -f "$INPUT_PDF" ]]; then
+    echo "Error: '$INPUT_PDF' not found."
+    exit 1
+fi
+
+# Remove .pdf extension and prepend IMG_
+BASE_NAME="$(basename "$INPUT_PDF" .pdf)"
+OUTPUT_JPG="IMG_${BASE_NAME}.jpg"
+
+echo "Converting first page of '$INPUT_PDF' to '$OUTPUT_JPG'..."
+
+pdftoppm -f 1 -l 1 "$INPUT_PDF" | pnmtojpeg > "$OUTPUT_JPG"
+
+echo "Done: $OUTPUT_JPG created."

pdf_tools/pdf_edit.sh

@@ -0,0 +1,102 @@
+#!/bin/bash
+
+# Convert a PDF into processed JPG images and split them into
+# multiple PDF files, with a maximum of 100 images per output PDF.
+
+set -e
+
+if [ "$#" -ne 1 ]; then
+    echo "Usage: $0 <pdf-file>"
+    exit 1
+fi
+
+pdf_file="$1"
+
+if [ ! -f "$pdf_file" ]; then
+    echo "Error: '$pdf_file' does not exist."
+    exit 1
+fi
+
+echo "Using $pdf_file"
+
+# Resolve the input directory and filename.
+pdf_dir="$(cd "$(dirname "$pdf_file")" && pwd)"
+pdf_name="$(basename "$pdf_file")"
+base_name="${pdf_name%.*}"
+
+buffer_dir="$pdf_dir/.BUFFERFOLDER"
+
+# Recreate the temporary working directory.
+rm -rf "$buffer_dir"
+mkdir -p "$buffer_dir"
+
+cp "$pdf_file" "$buffer_dir/$pdf_name"
+
+cd "$buffer_dir"
+
+echo "Extracting images..."
+
+# Extract PDF images as PNG.
+pdfimages -png "$pdf_name" "$base_name"
+
+count=0
+
+shopt -s nullglob
+
+for img in *.png; do
+    jpg="${img%.png}.jpg"
+
+    echo "Processing $jpg"
+
+    # PNG -> JPG
+    convert "$img" "$jpg"
+    rm "$img"
+
+    # Normalize image dimensions.
+    convert "$jpg" -resize 2550x3300! "$jpg"
+
+    # Use different crop dimensions for images containing "000".
+    if [[ "$jpg" == *000* ]]; then
+        convert "$jpg" -crop 2206x3200+200+50 "$jpg"
+    else
+        convert "$jpg" -crop 2106x3200+200+50 "$jpg"
+    fi
+
+    # Remove white background.
+    convert "$jpg" -fuzz 20% -transparent White "$jpg"
+
+    # Center image on a white 2550x3300 canvas.
+    convert "$jpg" \
+        -resize 2550x3300 \
+        -gravity center \
+        -background White \
+        -extent 2550x3300 \
+        "$jpg"
+
+    # Group images into batches of 100.
+    split_var=$((count / 100))
+    split_dir="split_${split_var}"
+
+    mkdir -p "$split_dir"
+    mv "$jpg" "$split_dir/"
+
+    ((count++)) || true
+done
+
+# Convert each group of images into a PDF.
+for split_dir in split_*; do
+    [ -d "$split_dir" ] || continue
+
+    split_number="${split_dir#split_}"
+
+    echo "Converting Part $split_number"
+
+    convert "$split_dir"/*.jpg \
+        "$pdf_dir/${base_name}_split_${split_number}.pdf"
+done
+
+# Remove temporary files.
+cd "$pdf_dir"
+rm -rf "$buffer_dir"
+
+echo "Done."