Compress PDF
Reduce the size of image-heavy and scanned PDFs with adjustable quality. Pick a target — strong, balanced, or light — preview the savings, and download a smaller file, all client-side.
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How to use Compress PDF
- 1
Add your file
Open the Compress PDF tool and drop in your file — or click to browse. Files are read directly into your browser's memory for local processing.
- 2
Adjust the options
Fine-tune the settings to fit your needs. Most tools process locally on your device, so changes preview instantly.
- 3
Download the result
Click the action button and your finished file downloads immediately — no queue, no email, no watermark.
Frequently asked questions
Is Compress PDF free to use?＋
Yes. Compress PDF on AsliPDF is completely free — no account, no daily limits and no watermarks on your output.
Is it safe to use Compress PDF with confidential documents?＋
Yes. Most tools on AsliPDF process your file entirely in your browser using WebAssembly — your document never leaves your device. Some future AI-powered tools may send data to a server with your explicit consent, and will always be clearly labeled.
Do I need to install any software?＋
No. Compress PDF runs in any modern browser on desktop or mobile. There is nothing to download or install, and no sign-up is required.