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Compress PDF

Sometimes we need to make files smaller. However, working with PDFs isn’t the easiest thing to do. If you’re wondering how to compress PDF file size, we have the answer.

That’s exactly what our PDF Compressor is here for.

Reduce the size of your file in seconds right here.

How to Compress a PDF

Reduce your file size in just 4 easy steps — PDF compression made simple!

Upload the file to compress

Drag and drop your PDF or click “Upload” and select the file
Edit as necessary

Use the many tools on our platform to make any changes you need
Compress the PDF file size

Click the “Compress” button to create a smaller version of the doc
Use your compressed PDF

Your new document is ready to save, print, and share

Why Choose Us to Compress a PDF?

Compress PDFs online

No software! No downloads! Everything you need to compress your documents is right here. All you need is an internet connection, and you’re good to go with our online PDF Compressor.

Tailor compression to your needs

How small do you need to make your PDF file? Do you need to make any edits before compressing? Our versatile platform lets you adapt your PDF as needed to create the ideal compressed document.

Easily share your PDFs

With PDFinity, you don’t even have to download your compressed file to start sharing it. You can share directly from our platform and even collaborate with other users to make further edits.

Compatible with all devices

Don’t worry about what type of device or operating system you’re using. Our PDF file compressor works perfectly on any smartphone, tablet, or computer, whether you’re using Apple, Microsoft, Android, or anything else.

PDF compression made easy

Shrinking your PDF file size is not always the simplest thing to do… Until you try our platform! Our compression tool lets you generate a smaller file in just a click.

Keep your PDFs secure

Privacy and security are paramount here at PDFinity. We use sophisticated encryption to keep your files and data safe while you’re compressing. When you’re done, we delete everything from our servers.

Frequently Asked Questions About Our PDF Compressor

How can I reduce a PDF's file size without affecting its quality?

Reducing file size will always result in some loss of quality.

Fortunately, our PDF Compressor maintains the highest quality possible when compressing your documents.

Bear in mind that the result depends on the compression settings you choose. Extensive compression could cause a noticeable loss of quality — especially if you have images on your PDF.
Can I upload really large PDFs on PDFinity?

Yes, our platform is designed to handle very large PDF files, so that you can use the Compressor tool to reduce the size.

You can upload huge files to work on using our various editing tools. If you then need to compress the document to a smaller, more manageable size, that’s exactly what our Compressor is for.
What is the file size of my PDF document?

The size of PDF documents depends on the amount of information they hold.

As a rough guide, PDFs consisting entirely of text are usually around 10kb per page. Other elements like images mean a larger file size.

You can check the size of your file by right-clicking on the file and selecting “Properties”.

This will show you the file size.
Why would I want to reduce the size of my PDF?
There are 2 main reasons to reduce the size of a file:

The files are too large to send or upload to online platforms.

Large PDF documents are taking up too much space on your hard drive.

When this happens, don’t despair! There are ways to reduce the file size.

Use our PDF compressor online to shrink them down.