Compress PDF
Reduce PDF file size up to 90%. Smart compression keeps text sharp while optimizing images. 100% private - files never leave your browser.
Compress PDF
Compression Level:
How to Use Compress
- 1 Add your PDF to the compression tool
- 2 Select target quality: Web, Office, or Print
- 3 Start compression and monitor progress
- 4 Save your smaller PDF file
What You Get
Intelligent DPI-based compression targeting embedded images. Text rendering stays pixel-perfect. Achieves 70-90% reduction on image-heavy documents.
Input: 18MB presentation with charts
Output: 2.5MB email-ready version (86% smaller)
Input: 45MB photo portfolio
Output: 6MB web-optimized portfolio
Input: 8MB resume with background graphics
Output: 1.2MB professional document
How do I make a PDF file smaller for email?
Upload your PDF, select a quality preset (Web for smallest, Print for best quality), then download the compressed version. Most PDFs shrink 70-90%.
Can I compress a PDF without losing quality?
Yes. Text and vector graphics stay perfectly sharp. Only images are recompressed. Use the Print preset for minimal visible change.
What is the best free online PDF compressor?
This tool is free, unlimited, and processes files locally for complete privacy. Typical compression is 70-90% for image-heavy PDFs.
How much can I reduce a PDF file size?
Image-heavy PDFs typically shrink 70-90%. Text-only PDFs compress less since text is already very efficient.
Why is my PDF file so large?
Large PDFs usually contain high-resolution images, embedded fonts, or uncompressed graphics. Compression optimizes these elements.
Why did my PDF get larger after compression?
Rare but possible if images were already optimized. The file may expand slightly from reprocessing. Try a lower quality preset.
Will links and forms still work after compressing?
Yes. Compression only affects images. Hyperlinks, form fields, bookmarks, and all interactive elements remain fully functional.
What is the difference between Web, Office, and Print quality?
Web is smallest (72-96 DPI). Office balances size and quality (120-150 DPI). Print preserves high quality (200+ DPI).
Is it safe to compress PDFs online?
Yes. This tool processes everything in your browser. Your file is never uploaded to any server. Complete privacy guaranteed.
What if I need even smaller PDF files?
Use Extreme Shrink for 95%+ reduction. Note that text will not be selectable after shrinking.
Your files never leave your device. All processing happens locally in your browser.