How to use a free online PDF compressor
Upload, choose the right compression mode, wait for processing, and download the optimized result.
Step 1. Upload your PDF files
Add up to 4 PDF files and confirm that each file fits the current size limit. The interface is designed to keep the upload step straightforward.
Step 2. Pick a compression strategy
Start with strict mode when display stability matters. Move to balanced or maximum only when you need a smaller result and understand the stronger trade-offs.
Step 3. Download the result
When processing finishes, download each optimized PDF or use the combined download option if you need the entire set together.