Reduce File Size Online

Reduce file size online

Adobe Acrobat online services let you compress PDF files right from your browser. Use our PDF compression tool to make your large PDFs smaller so they’re easier to share.

Easy PDF Compressor

Easy PDF file compression

Drag and drop or upload a PDF document to let Acrobat reduce its size. After compressing the file, you’ll find it’s simpler to work with and store.

Best PDF Converter

The best PDF compressor

Adobe invented the PDF format. Try the highest quality optimize PDF online tool to reduce the size of your PDF files in seconds.

Compress PDF

How to reduce the size of a PDF online

Follow these easy steps to compress large PDF files online:

  1. Click the Select a file button above, or drag & drop files into the drop zone.

  2. Select the file you want to make smaller.

  3. After uploading, Acrobat automatically reduces the PDF file size.

  4. Sign in to download or share your compressed PDF.

How do I compress a PDF without losing quality?

How do I compress a PDF without losing quality?


The Acrobat online PDF compression tool balances an optimized file size against the expected quality of images, fonts, and other file content. Just drag and drop a PDF into the tool above and let Acrobat reduce the file size without compromising quality.


For more refined control of optimization settings, you can try Adobe Acrobat Pro DC for free for seven days. Acrobat Pro DC lets you customize PPI settings for color, grayscale, and monochrome images.

Quality PDF Compressor
Convert to PDF with ease

Convert and compress with ease

Use Acrobat online services to convert Microsoft Word, Excel, and PowerPoint files to PDF. You can convert JPGs and compress files too.

Do more with your PDFs

Do more with your PDFs

Do you need to convert, combine, sign, and share files? Subscribe to Adobe Acrobat PDF Pack for a set of online tools.

Get the best with Adobe

Get the best with Adobe

Use the highest quality online PDF tools from the inventor of PDF. Sign in to do more with your stored files.