Compress PDF Online - Reduce File Size

Reduce your PDF file size securely without losing quality. Our advanced compression tool optimizes images and removes redundant data to make your document smaller. It is 100% client-side, which means your confidential documents are processed entirely in your browser and never uploaded to any server.

Upload PDF to Compress

Drag & drop files or click to browse • Batch supported

100% Private. Files never leave your device.

PDF

Smart Compression

Automatically optimizes your PDF to preserve quality while minimizing file size.

100% Private

Compression happens locally in your browser. Your files never leave your device.

No Limits

Compress as many files as you need without any daily limits or hidden fees.

How to Compress a PDF

Follow these 3 simple steps to reduce your PDF file size.

1. Upload your PDF

Click the upload button or drag and drop your PDF file into the dropzone to start the compression process.

2. Select Compression Level

Choose between Light, Medium, or Strong compression depending on how much you want to reduce the file size.

3. Download Compressed PDF

Click 'Compress PDF' and wait for the process to finish locally. Then click download to save your smaller PDF document.

Frequently Asked Questions

How do I compress a PDF file?

Upload your PDF file to the tool. It will automatically optimized and compressed to reduce file size while maintaining readability.

How can I compress PDF to 100kb or compress PDF below 1mb?

To compress PDF to 100kb or compress a PDF below 1mb, simply upload it and select "Strong" compression. The tool will optimize images, remove redundant data, and shrink your document to the smallest possible size without losing important text quality.

Is it free to compress PDFs?

Yes, our PDF compressor is 100% free. You can compress as many files as you need without any limits or hidden processing fees.

Will compression reduce quality?

Our tool optimizes the internal structure of the PDF to reduce size. In some cases, it may slightly reduce image quality to achieve better compression, but text remains sharp and readable.