Compress PDF
Make big PDFs and scans small enough to email or upload. Choose how much to shrink them, and see the size before and after.
PDF • Up to 50 MB · or drop a file here
Free to try, no sign-up needed
How to compress a PDF
Open your PDF
Choose the PDF that's too big.
Pick a level
Light keeps images sharp, Recommended suits most files, and Strong makes the smallest file.
Download it
The smaller PDF downloads straight away, with how much space you saved.
What you can do with Compress PDF
Three levels
Trade a little image quality for a much smaller file, or keep images sharp.
Text stays text
Only images are shrunk. Text stays sharp, searchable and selectable.
See the savings
You see the size before and after, like 25.1 MB → 3.4 MB.
Nothing kept
Your PDF is compressed and sent straight back. We don't keep a copy.
Questions about Compress PDF
How much smaller will my PDF get?
It depends on what's inside. Scans and PDFs full of photos often shrink by 70–90%. PDFs that are mostly text are usually small already.
Will compressing lower the quality?
Only images are affected. Light keeps them sharp, Recommended is fine for screens and most printing, and Strong is for when size matters most.
Can I compress a password-protected PDF?
Remove the password first, then compress it.
Is it free?
Yes. You can compress PDFs without an account.