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Compress PDF

Compress PDF files with advanced quality and DPI controls.

Compress PDF Online – Free & High Quality

How to Compress PDF

  1. Upload a PDF file
  2. Adjust quality and DPI settings
  3. Optional: grayscale or remove metadata
  4. Compress & download instantly

Drag & drop PDF or click to upload

Lower quality = smaller size

Convert to grayscale

Great for scanned documents

Remove metadata

Improves privacy & reduces size

Advanced PDF Compression Online

Reduce PDF file size intelligently without sacrificing readability, layout, or image clarity.

High-Quality Compression

PixelDrift uses advanced image recompression techniques to significantly reduce PDF size while keeping text sharp and images clear — ideal for documents, reports, and scanned PDFs.

Smart DPI & Image Control

Fine-tune output quality using DPI and compression level controls. Lower DPI for email sharing, or higher DPI for print-ready documents.

Perfect for Scanned PDFs

Grayscale conversion and metadata removal dramatically reduce file size for scanned PDFs, invoices, and paperwork — without breaking layout.

Privacy-First & Secure

Your PDFs are processed securely and never stored. Files are removed immediately after compression, ensuring complete privacy.

Why use PixelDrift’s Advanced PDF Compressor?

Large PDF files slow down workflows, email sharing, and website performance. PixelDrift’s advanced PDF compression tool helps you reduce PDF size online using professional-grade optimization techniques — completely free.

  • Compress PDF files without visible quality loss
  • Optimize scanned documents and image-heavy PDFs
  • Control DPI, image quality, grayscale, and metadata
  • No signup required — works directly in your browser
  • Improves storage efficiency and sharing speed

Whether you’re compressing PDFs for email, web upload, or long-term storage, PixelDrift gives you full control over file size and output quality.