Reduce Your PDF File Size
Our compression tool shrinks file size while keeping your document clear and readable
Upload or drag & drop your file
How we keep your files secure
How to compress a PDF file
Upload the PDF you want to reduce in size.
Wait a moment while our tool processes and compresses the file.
Download the smaller PDF – ready for faster sharing and storage.
Trusted by millions of users across 180 countries
Why PDF27?
Everything you need to edit, convert, and manage PDFs – in one place.
Edit PDF text
Fix typos, update content, and make changes directly in your PDF in just a few clicks.
All PDF tools in one place
Edit, convert, sign, and manage files without switching between different tools.
Fast file conversion
Convert PDFs to Word, Excel, PowerPoint, JPG, and more while keeping formatting intact.
Easy to use
A clean and intuitive interface that helps you get things done quickly.
Sign documents online
Add signatures and complete documents without printing or scanning.
No installation needed
Work directly in your browser from any device — no downloads required.
Popular Questions
Upload it, pick how much to squeeze, and PDF27 does the rest. You get a lighter file back.
Yes. High, medium or low, so you can trade a little sharpness for a much smaller file when you need to.
Up to 100 MB, which covers almost any document, report or scan.
Yes. The document stays a real PDF, so text can be searched, selected and copied as before.
Email limits, upload forms and portals often cap attachments. A lighter PDF goes through first time.