PDF Compressor

Shrink any PDF right in your browser. Each page is re-rendered and compressed — nothing is uploaded to any server.

Drop a PDF file here

or click to choose — one file at a time

How it works

1
Upload

Drop any PDF — it stays on your device and is never sent anywhere.
2
Choose level

Pick your compression target: quality vs. file size.
3
Download

Each page is re-rendered and compressed. Get your smaller PDF instantly.

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How to Use PDF Compressor

To compress a PDF, drag and drop your file onto the upload area or click to browse and select it. The tool analyses the PDF content in your browser and applies compression to reduce the overall file size. No data is sent to any server during this process.

After compression, the tool displays the original and compressed file sizes along with the percentage reduction achieved. You can then download the smaller PDF. This is especially useful for emailing large documents or uploading PDFs to web forms that have size restrictions.

help

Frequently Asked Questions

How much can PDF compression reduce file size? expand_more

Compression savings vary by content. PDFs containing large images typically see 40–70% size reduction, while text-heavy PDFs with minimal images may see smaller gains of 10–30%.

Does compression reduce the visual quality of my PDF? expand_more

The tool uses lossless and near-lossless compression techniques. Text and vector graphics are preserved perfectly; images may see minor quality adjustments to achieve size savings.

Is my PDF uploaded to a server when compressing? expand_more

No. The entire compression process runs locally in your web browser. Your PDF file is never transmitted to any external server.

Can I compress a password-protected PDF? expand_more

Password-protected PDFs cannot be compressed directly. You would need to remove the password protection first using the Unlock PDF tool, then compress the resulting file.

What is the maximum PDF size I can compress? expand_more

Since compression happens in your browser, the practical limit is determined by your device's available memory. Most typical PDFs under 100 MB compress without issues on modern devices.

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