PDF Compressor

🧭 How to Use This PDF Compressor

This smart PDF Compressor reduces file size while keeping the best possible quality. It works completely in your browser — fast, secure, and no installation required.

1️⃣ Upload Your PDF

• Click the "Select PDF File" button or drag & drop your PDF into the upload box.
• Maximum supported file size: 50 MB.
• Your selected file details (name + size) will appear below the upload area.
• Click "Remove" if you want to choose another PDF.

2️⃣ Adjust Compression Settings

• Compression Level: Choose between levels 1–6. Higher level = stronger compression + smaller size.
• Resolution (DPI): Controls image clarity inside the PDF.
  • 72 DPI (smallest file)
  • 150–200 DPI (best for reading)
  • 300 DPI (print quality)
• Color Mode: Choose Color or Grayscale. Grayscale produces smaller files.

3️⃣ Compress the PDF

• Click the "Compress PDF" button to start the process.
• Watch progress in the progress bar section.
• Processing happens fully offline in your browser.

4️⃣ Download Result

• Once completed, you will see:
• Original file size
• Compressed size
• Percentage saved
• Click "Download Compressed PDF" to save the optimized file.

⚠️ Troubleshooting

• If something goes wrong, an error will appear in the Error section.
• Make sure the PDF is not password-protected.
• Very large scanned PDFs may take longer depending on your system speed.
• If compression fails, try lowering DPI or choosing a stronger compression level.

💡 Tips for Best Results

• Recommended: Compression Level 4 + 200 DPI for best quality-to-size ratio.
• Use Grayscale for text-heavy documents to reduce size significantly.
• All processing is done locally — your documents never leave your device.