Compress PDF for FREE

Reduce your PDF file size in seconds — free, online, and secure.

🔒 PDF Files processed over SSL and deleted within hours — no sign-up

How to Compress a PDF Free

  1. 1

    Upload

    Select the PDF file you wish to compress. Drag and drop it into the box above or browse from your device.

  2. 2

    Start processing

    Our free online tool optimizes the internal structure of your PDF to reduce its file size in seconds.

  3. 3

    Download

    Your smaller PDF will be ready to download immediately. After the download is complete, any remaining files you uploaded will be purged from our server.

Frequently Asked Questions

How do I compress a PDF?

Upload your PDF in the box above, click "Compress PDF", and download the smaller file. The whole process takes just a few seconds.

How much smaller will my PDF get?

It depends on the file. We optimize the PDF's internal structure to reduce its size, so PDFs that aren't already optimized can shrink noticeably, while highly optimized or image-heavy PDFs may shrink less. We never return a file larger than the original.

Is the PDF compressor free?

Yes. PDFConvertMe is completely free to use, with no sign-up, no subscription, and no hidden fees.

Are my files secure and private?

Your file is sent over an encrypted (SSL) connection and processed automatically without anyone reviewing it. Uploaded files are deleted from our servers automatically within a few hours.

Does it work on Windows, Mac, and mobile?

Yes. PDFConvertMe runs entirely in your browser, so it works on any operating system or device — Windows, Mac, Linux, Android, and iOS.