Print Photos in A4 pdf

photos_to_print_pdf.sh

# Step 1: Unzip the downloaded photo archive
unzip your_photos.zip -d extracted_photos

# Step 2: Prepare the images
# Create a directory for resized images
mkdir resized

# Navigate to the directory containing extracted images
cd extracted_photos

# Resize images to fit A4 size and rename sequentially for ease of use
i=1
for img in *.jpg; do
  convert "$img" -resize 1240x1754\> "../resized/$i.jpg"
  i=$((i + 1))
done

# Step 3: Create the Photo Book PDF
# Navigate to the resized directory
cd ../resized

# Use ImageMagick's montage to create a PDF from the resized images
montage -geometry +0+0 \      # Sets the geometry to not add any extra space between images
       *.jpg \                # Takes all JPEG images in the directory
       +compress \            # Applies compression to reduce file size
       -resize 1240x1754 \    # Resizes images to fit A4 size before montage
       -tile 2x3 \            # Arranges images in a 2 columns by 3 rows format per page
       -page a4 \             # Sets the output page size to A4
       photobook.pdf          # Outputs the result into a PDF file named 'photobook.pdf'