Compress PDF Online Free

Compress PDF file size by up to 80% free online. Three compression levels: Extreme (72 DPI), Recommended (144 DPI), Low quality.

How to use the Compress PDF Online Free

  1. Upload your PDF: Go to fixflowhub.com/compress-pdf and drag-drop your PDF files or click to browse. Batch compression is supported.
  2. Choose compression level: Select Extreme for maximum size reduction (email), Recommended for balanced quality, or Low to preserve image sharpness.
  3. Compress the PDF: Click Compress to process all files instantly in your browser. No uploading to servers required.
  4. Download your files: Download each compressed PDF individually or get all as a ZIP bundle. Check the file size reduction displayed.

Frequently Asked Questions

How do I compress a PDF file online for free?

Upload your PDF to FixFlowHub, choose a compression level (Extreme, Recommended, or Low), and click Compress. Your smaller PDF downloads instantly — free, no signup required. No software installation needed.

How much can I reduce a PDF file size?

Up to 80% with Extreme compression, up to 60% with Recommended, and up to 30% with Low — depending on how many images are in your file. Text-only PDFs see less reduction than image-heavy documents.

Can I compress a PDF to under 1 MB for email?

Yes. Extreme compression (72 DPI images) significantly reduces file size and can bring most standard PDFs under 1 MB. This is ideal for sending via email, WhatsApp, or web upload forms.

Will compressing a PDF reduce image quality?

Extreme mode reduces images to 72 DPI, which shows on close inspection but is acceptable for most uses. Recommended uses 144 DPI (sharp on screen). Low compression (200 DPI) is barely perceptible to the eye.

Can I compress multiple PDFs at once?

Yes. Upload multiple PDFs and all will be compressed at the selected level simultaneously. Download each file individually or get all as a ZIP bundle with one click.

Is it safe to compress my PDF at FixFlowHub?

100% safe. All compression happens locally in your browser using JavaScript. Your files are never uploaded to any server — FixFlowHub never sees your documents at any point during processing.

Related free tools

More free pdf tools