Compress PDF – FreeToolSuite

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Compress PDF

Reduce your PDF file size without losing quality. Choose your compression level and download a smaller PDF in seconds.

✅ 100% Free 🔒 Secure & Private 📉 Up to 90% Smaller ⚡ Instant Result

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Up to 90% Smaller

Our smart compression engine reduces file size dramatically while keeping your content readable.

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4 Compression Levels

Choose from Low, Medium, High, or Extreme compression depending on your needs.

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100% Private

Files are processed in your browser. Nothing is ever uploaded to any server.

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Size Comparison

See exactly how much space you saved with a clear before vs after size report.

📦 Compress Your PDF

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Drop your PDF file here

or click to browse — supports files up to 200MB

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document.pdf —

🎚️ Choose Compression Level

🟢 Low ~20% smaller

Minimal compression. Best quality for printing.

🟡 Medium ~50% smaller

Balanced quality and size. Great for sharing.

🔴 High ~75% smaller

Strong compression. Good for email attachments.

🟣 Extreme ~90% smaller

Maximum compression. Smallest possible file size.

Image Quality 72%

Smallest Balanced Best Quality

Preparing… 0%

📂 Reading file

🖼️ Optimizing images

📦 Compressing data

✅ Finalizing

Original Size — Before compression

➡️ — saved

Compressed Size — After compression

Space saved —

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PDF Compressed Successfully!

Your PDF is now smaller and ready to download.

📖 How to Compress a PDF

Upload Your PDF

Click "Choose PDF File" or drag and drop your PDF into the upload area.

Choose Compression Level

Select Low, Medium, High or Extreme depending on how small you need the file to be.

Adjust Image Quality

Use the quality slider to fine-tune the balance between file size and image quality.

Download Your File

Click "Compress PDF" and download your smaller PDF with the before/after size comparison.

❓ Frequently Asked Questions

How much can I reduce my PDF file size?+

It depends on the content of your PDF. Files with many images can be reduced by up to 90%. Text-only PDFs may see 20–40% reduction. Our tool always shows you the exact savings.

Will compression affect the quality of my PDF?+

With Low and Medium compression the quality difference is barely noticeable. High and Extreme modes reduce image quality more noticeably to achieve maximum size reduction. Text and formatting are never affected.

Is my PDF file safe and private?+

Yes. All processing is done directly in your browser using JavaScript. Your file is never sent to any server. Your documents remain 100% private.

What is the maximum file size I can compress?+

Since compression runs in your browser there is no hard limit. However we recommend files under 200MB for the best performance. Very large files may take slightly longer.

Which compression level should I choose?+

Use Low for print-quality documents, Medium for sharing via email or cloud, High for large presentations, and Extreme when file size is the top priority such as for web uploads.

Can I compress a password-protected PDF?+

No, password-protected PDFs need to be unlocked first. Use our "Remove PDF Password" tool to unlock your PDF, then come back to compress it.

Does compressing a PDF affect its text or fonts?+

No. Compression only affects embedded images and redundant data. All text, fonts, links and document structure remain completely intact at every compression level.