How to Compress PDF Files: Reduce Size Without Losing Quality

Why Compress PDFs?

Email attachment limits (typically 25MB), slow uploads, and storage constraints make PDF compression essential. A well-compressed PDF can be 50-90% smaller than the original.

What Makes PDFs Large?

• High-resolution images — scanned documents and photo-heavy PDFs
• Embedded fonts — multiple font families increase size
• Unoptimized graphics — vector art with excessive detail
• Metadata — hidden information and revision history

Compressing with Fluranto

The Compress PDF tool offers smart compression:

Upload your PDF

Choose compression level (light, medium, strong)

Download the optimized file

Compression Levels

Level	Size Reduction	Best For
Light	20-40%	Documents with photos you want to keep sharp
Medium	40-60%	General use — good balance of quality and size
Strong	60-80%	Email attachments, when quality is secondary

### Tips for Smaller PDFs Before creating the PDF:

• Resize images to the actual display size before inserting
• Use fewer fonts (each font family adds ~100-500KB)
• Prefer vector graphics over raster images

After creating the PDF:

• Run through the compressor
• Remove unnecessary pages with Delete PDF Pages
• Strip metadata if not needed

Common Scenarios

Scenario: PDF too large for email

→ Compress with "strong" setting, or split into multiple files with Split PDF

Scenario: Scanned document is 50MB+

→ The images inside are likely 300+ DPI. Compress with "medium" to reduce while keeping text readable.

Scenario: Need to upload to a portal with 5MB limit

→ Compress progressively — try medium first, then strong if needed.