Free Online PDF Compressor
Reduce your PDF file size without losing quality. Choose your compression level and download a smaller file in seconds.
Drag & drop your PDF here
or click to browse
PDF files up to 50 MB
How It Works
Upload Your PDF
Drag and drop your PDF file or click to browse. Large files are handled directly in your browser with no upload to external servers.
Choose Compression Level
Select from recommended, high, or maximum compression. Preview the estimated file size reduction before applying.
Download the Compressed PDF
Download your smaller PDF file. The tool shows you the original and compressed sizes so you can see exactly how much space you saved.
Frequently Asked Questions
Results vary depending on the content. PDFs with large images typically see 50-80% size reduction. Text-heavy documents with few images may see smaller reductions of 10-30%.
The recommended compression level preserves visual quality for most uses. Higher compression levels reduce image resolution, which may be noticeable when printing at large sizes but looks fine on screens.
No. You can compress PDFs immediately without signing up, creating an account, or providing any personal information.
There is no enforced limit. Since compression runs in your browser, performance depends on your device. Files up to 100 MB typically process without issues on modern computers and phones.
Yes. The compression process runs entirely in your browser. Your file is never uploaded to any server, so it remains completely private and secure on your device.
You can choose between multiple compression levels and preview the estimated output size before downloading. If the result is not small enough, try a higher compression setting.