Compress PDF Files
Shrink your PDFs down to a fraction of their size. Pick a compression level and download instantly, all processed locally without uploading anything to a server.
Drag & Drop PDF Files
Add one or several PDF files to compress at once
Compression happens entirely in your browser.
Files to Compress
0 FilesAll files will be compressed using the level you choose below.
Compression Level
Compressing PDF files...
This may take a moment for larger files.
Compression Results
How to Compress a PDF
1. Upload PDFs
Drag and drop one or several PDF files into the drop zone.
2. Choose a Level
Pick Low, Recommended, or High compression depending on your needs.
3. Compress & Download
Download every compressed file straight to your device.
Why Use Our Compress Tool?
🔒 100% Client-Side
Your documents are never uploaded to a server, ensuring absolute privacy.
🎚️ 3 Compression Levels
Balance quality and file size exactly the way your use case needs.
📦 Batch Compression
Add multiple PDFs and compress them all together in one pass.
⚡ Lightning Fast
No upload time — compression runs directly on your device's CPU.
Frequently Asked Questions
Each page is rendered at an optimized resolution and re-encoded as a compressed image before being rebuilt into a new, lightweight PDF. Higher compression levels use a lower resolution and image quality to achieve a smaller file size.
Yes. Since pages are re-rendered as images to reduce size, the resulting PDF is not text-selectable or searchable. This tool works best for PDFs you mainly need to view, print, or share, such as scanned documents or image-heavy files.
Files that are already lightly formatted or mostly plain text may not shrink much, and in rare cases could even grow slightly. For the best results, this tool is most effective on PDFs containing large or high-resolution images.
Currently, encrypted or password-protected PDFs are not supported. Please remove the password before uploading.