Compress PDF
Reduce the size of your PDF in seconds, free. Your file is compressed on your device and never uploaded.
Choose a PDF or drop it here
Up to 100 MB · Stays on your device
Compression level
Your file is never uploaded. Compression happens in your browser.
Private by design
Your PDF is compressed on your device and never uploaded.
Text stays sharp
We shrink the images, not your text, fonts or drawings.
Free, no signup
No account, no watermark and no limit on how many files.
Fast
Most PDFs are done in a few seconds, on any device.
How to compress a PDF
- Choose your PDF, or drag and drop it into the box above.
- Pick a compression level. Recommended suits most files.
- Click Compress PDF, then download your smaller file.
Frequently asked questions
Is this PDF compressor really free?
Yes. Compress as many PDFs as you like, completely free, with no account, no watermark and no daily limit.
Is my PDF uploaded to a server?
No. Your PDF is compressed inside your browser, on your own device. The file is never uploaded, so nobody else can see it.
Will compression reduce the quality of my PDF?
The Recommended level only shrinks the images inside the PDF, so text and drawings stay exactly as they were. Images are kept sharp enough to read and print. The Maximum level turns each page into an image, which gives the smallest file but lower quality.
How much smaller will my PDF get?
It depends on what is inside. PDFs with photos or scanned pages often shrink by 50–90%. PDFs that are mostly text are usually small already, so they shrink less.
Why didn’t my file get smaller?
Some PDFs are already well optimised. If we can’t make your file smaller, we tell you and give you back the original instead of a bigger file. Try the Maximum level for scanned documents.
Is there a file size limit?
You can compress PDFs up to 100 MB. Very large files take longer because the work happens on your device.
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