PDF Compression

Why Compress a PDF?

PDF files can become very large when they contain high-resolution images, embedded fonts, and graphics. Large PDFs cause problems with:

• Email attachments — Most email services have a 10–25MB attachment limit.
• Online portals — Government, university, and job application portals often have strict file size limits (100KB–2MB).
• File sharing — Smaller PDFs are faster to upload, download, and share.
• Website performance — PDFs embedded in websites should be compressed for faster loading.

How to Compress a PDF Online for Free

1. Open the Compress PDF tool on FreeToolsAll.
2. Upload your PDF file by dragging and dropping or clicking the upload button.
3. Select your compression level (low, medium, or high compression).
4. Click Compress PDF and wait a few seconds.
5. Download the compressed PDF.

Tip: If you need the PDF below a specific size, use one of the size-specific compression tools like Compress PDF to 100KB or Compress PDF to 200KB.

How Much Can You Compress a PDF?

Compression results depend on the content of your PDF:

• Image-heavy PDFs — Can be reduced by 60–80% by compressing embedded images.
• Text-only PDFs — Typically achieve 20–40% size reduction through font subsetting and stream compression.
• Scanned PDFs — These are essentially images and can be compressed significantly, though at the cost of some image sharpness.

Compress PDF to a Specific File Size

Many use cases require exact file sizes. Use these targeted tools:

• Government applications — Often require PDFs under 100KB or 200KB
• University submissions — Typically allow up to 500KB or 1MB
• Job applications — Resume PDFs should be under 500KB for easy email delivery