Compress PDF files online free to a smaller size while keeping quality. Shrink PDFs for email or upload limits — fast and secure.
Compress PDF is part of ToolsPilot — a free online toolkit for PDFs, images, audio and video. No signup, no watermark and no software to install. Your file is processed on a secure server and deleted automatically right after — never stored or shared.
How to use Compress PDF
Open the Compress PDF tool and add your file — drag and drop it, or click to browse from your device.
Choose any options you need, then run it — ToolsPilot processes your file in just a few seconds.
Download your result instantly. No account, no email and no watermark — ever.
Frequently asked questions
Is Compress PDF free to use?
Yes. Compress PDF on ToolsPilot is 100% free with no account, no watermark and no daily limits for everyday use.
Are my files private and secure?
Your file is sent over an encrypted connection, converted on a secure server, and deleted automatically right after — it is never stored or shared.
Do I need to install any software?
No. Compress PDF works online in any modern browser on Windows, macOS, Linux, Android and iOS — there is nothing to download or install.
How much can I reduce my PDF size?
Most PDFs shrink by 40–80% depending on the images inside. Choose “extreme” for the smallest file or “recommended” to balance size and quality.
Does compressing reduce quality?
Compression mainly re-encodes images. On the recommended setting the difference is barely noticeable, while the file gets much smaller and easier to email.