Shrink large PDFs so they are easier to email and upload. The tool optimises and re-saves your document locally, reducing file size without sending data to any server.
You might also need
Tool health
Privacy first, always
Sponsored
Shrink large PDFs so they are easier to email and upload. The tool optimises and re-saves your document locally, reducing file size without sending data to any server.
Whether you're a professional or just need a quick result, the PDF Compress gives you a fast, reliable documents tool that works instantly in your browser. There's no software to install and nothing to sign up for — open the page, get your result and move on. Because everything runs on your own device, it's private by default and available whenever you need it.
The PDF Compress is part of TechToolsCenter — a free, privacy-first collection of 126+ online tools. Everything runs 100% in your browser, so your data stays private and results are instant.
Input
Output
Formats
Upload a file or paste your text. Processing happens locally in your browser, so nothing is uploaded to a server.
Set the options for your task — pages, order, format or quality — and watch the preview react in real time.
Apply the change. Large files are handled entirely on your device for speed and privacy.
Save the finished file. There are no watermarks and no limits on how often you can use it.
Tips
Common mistakes
Best practices
Input
File upload — e.g. pdf compress
Output
PDF, generated instantly in your browser
The tool optimises document structure and image streams. Text stays crisp; heavily image-based PDFs see the largest savings.
It's free, private and works instantly — no sign-up required.
Sponsored