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Drag & drop files here or use the button below
Max size: 100MB
Max files: 1
Reduce PDF file size while maintaining quality.
How to Compress PDF Online — Free, No Upload
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Upload your PDF file by clicking or dragging it into the upload area.
- 2
Choose the compression level — Light, Medium, or Heavy — based on your needs.
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Click "Process" and download the compressed PDF instantly. No watermark added.
Why Use Drop's Compress PDF?
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Cuts file size by up to about 70% while keeping text sharp and images clear.
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Enough to get a resume or scan under a typical email size limit.
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Runs in your browser — your PDF is never uploaded to a server.
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No sign-up, no watermark, no daily limit.
Frequently Asked Questions
Does compressing a PDF reduce quality?
Light and Medium presets maintain excellent quality suitable for most documents. Heavy compression is best for documents without high-resolution images.
Is there a file size limit?
You can compress PDFs up to 100 MB. Processing happens locally in your browser.
Can I compress a PDF for email?
Yes. This tool is perfect for reducing PDF size to fit email attachment limits (usually 25 MB). Use Medium compression for the best balance.
Is my PDF uploaded to a server?
No. All compression runs in your browser using WebAssembly. Your file never leaves your device.