compress-pdf
Adobe Acrobat

Compress PDF files

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How to compress a PDF

Follow these easy steps to compress a large PDF file online:

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/frictionless/how-to-images/compress-pdf-how-to.svg | Three documents in decreasing size showing how to compress a PDF

  • Click Select a file in the box above or drag and drop your PDF into the drop zone.
  • Choose the PDF file you’d like to compress in file size.
  • Select your compression level – High, Medium or Low.
  • Click Compress. The compress tool will automatically reduce the file size.
  • Save your newly compressed PDF. You can also sign in and share with collaborators.

Try out our free online PDF compressor tool today

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/shared-images/frictionless/seo-icons/reduce-file.svg | A file being reduced in size

Reduce PDF files for free online

With Adobe online tools, you can make light work of all your tasks. Use the compress PDF tool to reduce the size of PDF files in just a click.

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/shared-images/frictionless/seo-icons/edit-pdf.svg | A compressed PDF file that can be easily shared

Compress PDF files quickly and easily

Upload PDF files and let Adobe online tools do all the work. Compress your PDF files to a smaller file size, making it easier to save in storage, share and attach to emails.

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/shared-images/frictionless/seo-icons/reliable-pdf.svg | An Acrobat PDF with a measurement bar showing you can choose your compression level

Finetune your compression quality

You choose how small to make your files. Different compression levels can affect the quality. Need a super small PDF file? Select High compression. To retain a higher file quality, choose Medium or Low compression.

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/shared-images/frictionless/seo-icons/share.svg | An arrow representing how easy it is to share a compressed PDF file

Share PDFs with collaborators

Avoid email file size limits and enjoy faster upload speeds with smaller files. Our compress PDF tool opens up the possibilities for sharing documents online.

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/shared-images/frictionless/seo-icons/protect-pdf.svg | An Acrobat PDF with a lock demonstrating file security you can trust

Edit sensitive files securely

We value your security above all else. With Adobe online tools, if you don’t save your file, we’ll delete them from our servers to protect your privacy. We also install safety measures into every PDF created using Acrobat.

https://main--dc--adobecom.hlx.page/dc-shared/assets/images/shared-images/frictionless/seo-icons/best-pdf.svg | A high-quality compressed PDF file

The leading PDF compressor tool

Adobe created the PDF file format. That’s why we offer the best editing tools available online. Try our free compression tool and reduce file sizes securely on your browser – including Microsoft Edge and Google Chrome.

Read our FAQs

How do I compress a PDF without losing quality?
Adobe online tools can compress PDFs without compromising quality. Choosing a Low compression level reduces the file size to approximately 1.0MB while retaining the highest quality settings. For even smaller files, you can select Medium compression to reduce your PDF size to further. To find out more visit our guide on how to compress PDF to 1MB and Lower. You can also try a 7-day free trial of Adobe Acrobat Pro and use precise optimisation tools.
What size PDFs can I compress?
Adobe online tools can compress PDF files up to 2GB using the compress PDF size tool.
How do I check my PDF file size?
Our compress PDF tool will show you how large your file is after compression. Check the estimated file size before you click Compress when browsing compression level options. On Windows, you can also check file sizes by right-clicking the file in your folder and selecting Properties. On Mac, you can do this my control-clicking the file and selecting Get Info.
https://main--dc--adobecom.hlx.page/dc-shared/assets/images/shared-images/frictionless/create-an-account-image/create-an-account.svg | a text bubble, pencil icon and a stacked PDF icon representing free online Acrobat tools

Use Acrobat tools for free

  • Sign in to try 25+ tools, like convert or compress
  • Add comments, fill in forms and sign PDFs for free
  • Store your files online to access from any device

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