Compress PDF
Reduce PDF file size with smart compression — 5 quality presets, batch processing, and advanced controls.
Drop your PDF(s) here
or click to browse — supports multiple files
PDF files up to 25.0 MB · max 5 pages
How It Works
Upload your PDF
Drag and drop your PDF file or click to browse. You can add multiple files for batch compression.
Choose compression level
Select from 5 presets — lossless, low, medium, high, or extreme — or set a target file size.
Download compressed PDF
Click Download to save your compressed PDF. File size reduction is shown instantly.
Frequently Asked Questions
How much can I reduce my PDF file size?▾
PannaPDF can reduce PDF file size by up to 80% depending on the content. Image-heavy PDFs see the biggest reductions. Lossless mode reduces size without any quality loss.
Is the compression done on your servers?▾
No. All compression happens directly in your browser using WebAssembly. Your files never leave your device, ensuring complete privacy.
Can I compress multiple PDFs at once?▾
Yes. PannaPDF supports batch compression — upload multiple files and compress them all simultaneously with the same settings.
Will compressing my PDF reduce quality?▾
The lossless preset preserves original quality. Other presets reduce image quality slightly to achieve smaller file sizes. You can preview before downloading.