Free PDF Compresser Online


  • Step 1: Click on the upload box and select the PDF you want to compress or just drag it there.
  • Step 2: Wait for the compression to finish. This usually just takes a short moment.
  • Step 3: Click "Download" to retrieve the result. The app will inform you about the compression level reached.

PDF Compressor

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Online PDF Compressor

Our web-app will compress almost any PDF by a factor of up to 90%. The reduction of filesize reached depends on the properties of your input file.

Sending large PDFs via Mail

Many email providers limit the size of attachments which can cause a problem if you want to send a large PDF via mail. Our service allows you to get your large PDFs ready for sharing them via mail.

Unlimited free PDF Compressions

The usage of our app to compress PDFs is 100% free. No page limitations. No hidden costs.

Filesize vs Quality

Compression always comes along with a quality loss. Our algorithm tries to find the best compromise between PDF filesize and quality when shrinking your document.

No Software Download

You do not have to download and install any additional software on your device when using app to compress pdf online.

Privacy Protection

Your privacy is important for us. Your PDFs will be deleted from our servers after the conversion immediately. We will not share them or even just look at them.