Compress PDF - Reduce files Size

Reduce file size and optimize PDF quality. Online Tool for free PDF Compression. Secure and browser-based, no installation.

Compress PDF

Drop PDFs or folders here, or choose below

Add files Add folder

Starting

0files

0 KBoriginal

-compressed

-saved

Image quality Max image sizeLongest side in pixels4000 px3000 px2000 px1500 px1200 px1000 px800 px600 px Only touch images overSkips small imagesany size5 KB15 KB30 KB100 KB Shrink lossless imagesConverts PNG-style images to JPEG Convert images to grayscale Remove metadataAuthor, title, XMP data Remove page thumbnails

How to use

Add PDFs or a folder, pick Light, Balanced or Strong (or Custom for full control) and tap Compress. Then save each file or download all as a ZIP. Everything runs on your device; nothing is uploaded.

What does it compress?

It re-encodes the pictures inside the PDF at a lower quality and size, then rewrites the file more compactly. Text and vector drawings stay sharp. PDFs that are mostly text may shrink very little, and a file is never replaced by a larger one.

FAQ

Why did my file barely change? It probably has few or small pictures, or they are already well compressed. Try Strong or Custom with a lower quality.

Is it safe? Your original files are never changed. Compressed copies are named with a suffix you can set in Settings.

Settings

Name suffix Include subfolders Skip duplicate files Read encrypted PDFs Text size