Compress PDF
Reduce the file size of your PDF for easier sharing and uploading, free, right in your browser. Your file never leaves your device.
How to compress a PDF
1. Select or drag your PDF file into the box above.
2. Choose a compression level — higher compression re-encodes embedded images at lower quality for a smaller file.
3. Click "Compress PDF" and download your smaller file instantly.
About the compression levels
Low only optimizes the file structure, keeping images untouched — best when quality matters most. Medium also re-compresses embedded images moderately. High compresses images more aggressively for the smallest possible file, with some visible quality loss on image-heavy PDFs.