Add qpdf compression command tool (#1012)

* Add qpdf compression command tool
* Updated comments and namings
* updated description
* Specified how to install qpdf via brew

Author: nicklasjm

commands/productivity/qpdf/compress-pdf-qpdf.sh

@@ -0,0 +1,103 @@
+#!/bin/bash
+
+# Dependency: This script requires `qpdf` installed: https://github.com/qpdf/qpdf
+# Install via homebrew: `brew install qpdf`
+
+# Required parameters:
+# @raycast.schemaVersion 1
+# @raycast.title Compress PDF
+# @raycast.mode compact
+# @raycast.packageName QPDF
+
+# Optional parameters:
+# @raycast.icon 🗜️
+# @raycast.argument1 { "type": "text", "placeholder": "Quality (0-100, default: 50)", "optional": true }
+
+# Documentation:
+# @raycast.description Compress selected PDF files. Note: This script requires 'qpdf' to be installed via Homebrew.
+# @raycast.author Nicklas Jakobsen
+# @raycast.authorURL https://github.com/nicklasjm
+
+# Configuration
+QUALITY="${1:-50}"
+export PATH="/opt/homebrew/bin:/usr/local/bin:$PATH"
+
+# Check for qpdf dependency
+if ! command -v qpdf &> /dev/null; then
+    echo "Error: qpdf is not installed."
+    echo "Run 'brew install qpdf' in Terminal."
+    exit 1
+fi
+
+# Get files via AppleScript
+SELECTED_FILES=$(osascript <<EOD
+tell application "Finder"
+    set theSelection to selection
+    if theSelection is {} then
+        return ""
+    end if
+    set output to ""
+    repeat with theItem in theSelection
+        set output to output & POSIX path of (theItem as alias) & "\n"
+    end repeat
+    return output
+end tell
+EOD
+)
+
+if [ -z "$SELECTED_FILES" ]; then
+    echo "No files selected in Finder"
+    exit 1
+fi
+
+IFS=$'\n'
+count=0
+last_output=""
+
+# Loop through files and compress
+for f in $SELECTED_FILES; do
+    # Ignore non-PDF files
+    if [[ "$f" != *.pdf && "$f" != *.PDF ]]; then
+        continue
+    fi
+
+    filename=$(basename "$f")
+    echo "Processing: $filename ($QUALITY%)..."
+
+    dir=$(dirname "$f")
+    base_filename=$(basename "$f" .pdf)
+    
+    # Filename format: Name_50%.pdf
+    output="$dir/${base_filename}_${QUALITY}%.pdf"
+
+    # Run qpdf
+    # We use --recompress-flate to ensure images are unpacked and re-evaluated
+    qpdf --compress-streams=y \
+         --recompress-flate \
+         --decode-level=generalized \
+         --compression-level=9 \
+         --optimize-images \
+         --jpeg-quality="$QUALITY" \
+         --object-streams=generate \
+         "$f" "$output"
+    
+    if [ $? -eq 0 ]; then
+        ((count++))
+        last_output="$output"
+    else
+        echo "Error processing: $filename"
+        sleep 2
+    fi
+done
+
+# Show result
+if [ $count -eq 0 ]; then
+    echo "No files were created."
+    exit 1
+else
+    # Reveal the last created file in Finder
+    if [ -n "$last_output" ]; then
+        open -R "$last_output"
+    fi
+    echo "Done! Saved as ..._${QUALITY}%.pdf"
+fi