Compress PDF Online Free
Shrink your PDF files by up to 90% without losing quality. Upload up to 10 files at once — fast, secure, and easy to use.
Drop Your PDFs Here
Drag and drop your PDF files, or click the button below
Why Our PDF Compressor Works Better
No bloated software, no subscriptions. Just upload your PDF and get a smaller file in seconds.
Smart Image Compression
We intelligently optimize embedded images — the biggest culprits in large PDFs — without making them look worse.
Up to 90% Smaller
Choose extreme compression for the smallest file, or balanced mode to keep a great-looking result. Your call.
Secure & Private
Files are encrypted in transit and automatically deleted from our servers within one hour. We never store your documents.
Compress in Three Steps
The fastest way to shrink a PDF file.
Upload Your PDFs
Select up to 10 PDF files at once. Each can be up to 100MB. Drag and drop or click to browse.
Pick a Compression Level
Choose Maximum Quality, Balanced, or Extreme Compression. Balanced is the sweet spot for most people.
Download Smaller Files
Compression takes just a few seconds. Download your optimized PDF files straight away.
Common Questions
Everything you need to know about compressing PDF files.
It depends on what's in the PDF. Files heavy with images can shrink by up to 90%. Text-only documents typically see 20–40% reduction. The Extreme mode gives the smallest file; Balanced keeps quality high.
In Balanced mode, the difference is barely noticeable — text stays crisp and images look clean. Extreme mode does reduce image quality slightly, but it's a big size win if that's what you need.
Yes — upload up to 10 PDFs at once. We process them all together and give you a zip file to download when there's more than one.
Each file can be up to 100MB. If yours is bigger, try splitting it first with our PDF splitter tool, then compress the parts.
Everything is deleted within one hour of processing. Your files are encrypted during the upload and transfer. We don't read them, keep them, or share them.
When You Need to Shrink a PDF
Large PDFs are a pain to email, slow to upload, and eat up storage. Whether it's a scanned document, a presentation packed with images, or a form that's ballooned in size — our compressor handles it without you needing to install anything.
You choose how aggressive the compression is. Maximum Quality mode (20–40% reduction) keeps everything looking sharp. Balanced (40–70%) is the go-to for most files. Extreme (70–90%) gives you the smallest possible file when size matters more than perfect image quality.
Works With Any PDF
Scanned documents, forms, presentations, ebooks, contracts — if it's a PDF, we can compress it. Our tool works across all devices: desktop, tablet, and phone. No app download, no account needed.
Compress Your PDF Now
Free, fast, and private. Drop your files and get smaller PDFs in seconds.