SCALEBAR PDF TOOLS — Compress a PDF, Single File or Batch

Compress a PDF

Automatic: it will detect whether your PDF is vector or image based.
Lossless: choose this if your PDF is mostly lines, text and hatching (vector drawings with little embedded imagery, or bitonal scans).
JPEG: choose this only if your PDF contains mostly photographs or photorealistic renders.

Make your PDF smaller and easier to share or store, without losing quality.

Check our based on your file type.

More tools to use with this file:

About Compress PDF

Compress PDF by Scalebar is a browser-based tool that reduces the PDF file size to save storage space and make sharing faster. It uses Ghostscript compiled to WebAssembly for real compression, not just metadata stripping. The tool supports both individual PDFs and batch processing, making it suitable for securing contracts, legal documents, architectural drawings and technical documentation.

Common uses

Attaching PDFs to emails that have file size limits
Uploading contracts and legal documents to portals with size restrictions
Reducing the size of scanned architectural drawings and technical plans
Saving storage space when archiving large batches of PDFs
Speeding up uploads and downloads on slow connections
Preparing lighter files for websites, portfolios or client deliverables