Compress PDF files online easily with our free PDF compressor. Our PDF tools are here to help you get things done—better, faster, smarter.
Were you looking for Shrink PDF, Reduce PDF Size, or PDF Compressor instead?
Our Compress PDF is an online tool made for compressing large PDFs online for free. Whether you need to optimize PDF documents for easier emailing, sharing, or storage, you’ll be ready to go within seconds.
Quick, professional results you can trust—every time. Choose from two compression levels to reduce the size of your PDF without ever compromising on document quality.
We take your file, remove repetitive patterns, re-encode heavy images, and voilà—the result is a high-quality, but much lighter PDF. Done in a flash, so you can get work done even faster.
You can easily share your PDF with your team or client once you reduce its size or save it to Google Drive, Dropbox, or your Smallpdf account.
Nothing to install, no training required. Just drop files into the compressor and let it take care of the PDF compression immediately.
We’re cloud-based, so you can reduce your PDF file size online via any browser on Mac, Windows, Linux, iOS, Android, or any other operating system.
Compress more than just PDFs. Use the tool’s functionality to reduce other file types, such as Word, PPT, Excel, JPG, PNG, GIF, and TIFF.
We're GDPR compliant, which means we're transparent about how we store, collect, and process your personal information.
We’re ISO/IEC 27001 certified, so we’re audited annually to ensure the safety, security, and integrity of your information.
We keep your documents secure, even while you’re working on them, with state-of-the-art TLS encryption technology.
Yes! All of our tools, including the compressor to reduce file size, are free to use with certain limitations. You’re also not limited to only compressing PDFs; you can reduce the file size of other document types, like MS Office files, JPG, PNG, GIF, and TIFF. Simply drop your files into the tool to get started.
You bet! Our Business and Team plans give you and your team or business unlimited access to all of our Pro features. You'll also get some added benefits, such as flexible payment options and priority customer service. For a custom quote, please contact our sales team.
You don't need a Smallpdf Pro subscription to compress your documents. However, with a Pro subscription, you will have unlimited access to our compression tool, plus all our other tools, so you can convert, e-sign, merge, split, and more.
Not at all! Compressing your PDFs with us will have no negative impact on the fonts in your documents.
At Smallpdf, we’re committed to safety and security. We’re GDPR compliant, undergo annual audits to earn our ISO/IEC certification, and carry advanced TLS encryption, which means that your data, personal information, and documents are safe with us. What’s more, each time you perform a task, like compressing a file, this entire process is fully encrypted for full-scale security.
Absolutely! Try our apps for Windows, Android, and iPhone to compress large PDF files on the go.
HOW TO COMPRESS PDF
The best free online tool to compress large PDFs while maintaining file format and quality. No registration needed.
HOW TO COMPRESS PDF
Need to shrink a PDF file down to less than 1 MB for online submission? Let Smallpdf help you!
HOW TO COMPRESS PDF
Got a PDF file that’s too big? Here are three free tools that you can use to reduce your PDF size online through your browser, and locally on Windows or Mac.
Boost productivity in your business with unlimited access to all Smallpdf’s tools for taking the hassle out of document work. Do more, better, faster.