Compress PDF
Reduce file size of your PDF document securely in your browser.
Drag & Drop your PDF here
Only PDF files are supported
How it works
- Select or drag and drop your PDF file.
- Apply your desired PDF modifications.
- Click process.
- Download your new PDF document.
Supported Formats
Processed in your browser
This tool uses browser technologies to process your files locally on your device. Your files are not uploaded to any server.
Frequently Asked Questions
Why didn't my file size change much?
Filoza processes your PDFs entirely on your device for absolute privacy. Because we don't upload your files to a server, we can't run heavy image-downsampling algorithms. Our tool optimizes the internal structure of the PDF, which works great for some files, but won't compress large embedded images as aggressively as server-based tools.
Is my data secure?
Yes! All processing happens securely in your web browser. Your PDFs never leave your device.