Compress PDF
Reduce the file size of your PDF documents with powerful client-side compression.

Drag & drop or click to select a PDF file (Max 50MB)

Accepted: APPLICATION/PDF (max 50MB)

How to Compress PDF Online for Free

Reduce the file size of your PDF documents with our free online tool. Our PDF compressor is fast, easy to use, and preserves the quality of your files. Choose from different compression levels to find the perfect balance between file size and document quality. All processing is done securely in your browser, ensuring your files remain private.

How to Compress PDF

  1. Upload your PDF file by dragging it into the dropzone or clicking to select a file.
  2. Select your desired compression level: Mild (good quality), Balanced (recommended), or Aggressive (smallest size). You can also fine-tune the image quality using the slider.
  3. Click the 'Compress PDF' button to start the compression process.
  4. Once compressed, you'll see the original and new file sizes, along with the percentage of reduction. Download your optimized PDF file.

Frequently Asked Questions

How much can I compress my PDF file?

The compression amount depends on the content of your PDF. Documents with many images or large embedded fonts will see significant reduction, while text-only PDFs may have less room for compression. Our tool uses advanced algorithms to optimize file size.

Is it safe to compress my PDF files online?

Absolutely. Your privacy and security are our top priorities. All PDF compression happens directly in your web browser. Your files are never uploaded to our servers, ensuring your documents remain confidential.

Will the quality of my PDF be affected?

Our PDF compressor is designed to reduce file size while minimizing quality loss. You can choose from different compression levels and adjust image quality to find the right balance for your needs. For most uses, the 'Balanced' option provides excellent results.

What types of content are compressed in a PDF?

Our compressor primarily optimizes images within the PDF by re-encoding them with efficient compression algorithms. It also removes redundant PDF objects and optimizes fonts, leading to overall file size reduction.

Is there a file size limit for compression?

Yes, the maximum file size for a PDF to be compressed is 50MB. For larger files, processing might be slower due to client-side operations.