High Level Output Devices

Controls and features specific to PostScript and PDF input

• dPDFSETTINGS=configuration

Presets the "distiller parameters" to one of four predefined settings:

📄 Options de compression Ghostscript (dPDFSETTINGS)

NB Adobe has recently changed the names of the presets it uses in Adobe Acrobat Distiller, in order to avoid confusion with earlier versions we do not plan to change the names of the PDFSETTINGS parameters. The precise value for each control is listed in the table above.

Please be aware that the /prepress setting does not indicate the highest quality conversion. Using any of these presets will involve altering the input, and as such may result in a PDF of poorer quality (compared to the input) than simply using the defaults. The 'best' quality (where best means closest to the original input) is obtained by not setting this parameter at all (or by using /default).

The PDFSETTINGS presets should only be used if you are sure you understand that the output will be altered in a variety of ways from the input. It is usually better to adjust the controls individually (see the table below) if you have a genuine requirement to produce, for example, a PDF file where the images are reduced in resolution.

Press PDF

Press PDF

#!/bin/bash

# Choix du profil de compression
echo "Choisis le profil de compression PDF :"
echo "1) screen (faible qualité, taille minimale)"
echo "2) ebook (moyenne qualité)"
echo "3) printer (bonne qualité impression)"
echo "4) prepress (qualité pro, fichier plus lourd)"
echo "5) default (polyvalent)"

read -p "Entrez le numéro correspondant [1-5] : " choix

case $choix in
    1) PDFSETTINGS="/screen" ;;
    2) PDFSETTINGS="/ebook" ;;
    3) PDFSETTINGS="/printer" ;;
    4) PDFSETTINGS="/prepress" ;;
    5) PDFSETTINGS="/default" ;;
    *) echo "Choix invalide. Sortie."; exit 1 ;;
esac

SUFFIX_PDF="-min.pdf"

# Traitement de chaque fichier PDF passé en argument
for f in "$@"; do
    if [[ "$f" == *.pdf ]]; then
        base="$(basename "$f" .pdf)"
        dir="$(dirname "$f")"
        output="$dir/$base$SUFFIX_PDF"

        echo "Compression de : $f → $output"
        
        /opt/homebrew/bin/gs -q -dSAFER -dNOPAUSE -dBATCH -sDEVICE=pdfwrite \\
            -dPDFSETTINGS="$PDFSETTINGS" \\
            -sOutputFile="$output" "$f"
    else
        echo "Le fichier $f n'est pas un PDF, ignoré."
    fi
done

echo "✅ Compression terminée."

Press PDF normal

SUFFIX_PDF="-min.pdf"
for f in "$@"
do
	fichier="$f"
 	base="$(basename "$fichier" .pdf)"
    firstPDF="./"
firstPDF+="$base$SUFFIX_PDF"

    /opt/homebrew/bin/gs -q -dSAFER -dNOPAUSE -dBATCH -sDEVICE=pdfwrite  -dPDFSETTINGS="/screen"  \\
      -sOutputFile="$firstPDF" "$f"
done

Press PDF in gray

#!/bin/bash

SUFFIX_PDF="-gray.pdf"
for f in "$@"
do
    base="$(basename "$f" .pdf)"
    firstPDF="$base$SUFFIX_PDF"
    outputDir="$(dirname "$f")"  # Obtenez le répertoire du fichier source
    outputPath="$outputDir/$firstPDF"
    $(/opt/homebrew/bin/gs -q -dSAFER -dNOPAUSE -dBATCH -sDEVICE=pdfwrite  -dPDFSETTINGS="/screen"  \\
    -sProcessColorModel=DeviceGray \\
    -sColorConversionStrategy=Gray \\
    -dOverrideICC \\
    -sOutputFile="$outputPath" "$f")

    # Déplacer le fichier source vers la corbeille
    mv "$f" ~/.Trash/
done

Erreurs connu

Vérifier si Ghostscript (gs)

A trier