Compress PDF
Shrink heavy PDFs so they're easy to email, upload, and share — while keeping text crisp.
Drop your files here
or click to browse — processed privately in your browser
Stripped metadata + object stream compression, fully in your browser.
Why use this Compress PDF tool?
Fast
Most conversions finish in seconds, even for large files.
Private
Files are processed in your browser whenever possible.
Unlimited
No daily caps, no watermarks, no account needed.
How to use Compress PDF
- 1
Upload your file by drag-and-drop or click to browse.
- 2
Let The Flow Converter process your compress pdf request — it only takes seconds.
- 3
Download the result — no signup, no watermark, ever.
Related tools
All toolsCompress PDF — FAQ
Is Compress PDF really free?+
Yes — Compress PDF is 100% free on The Flow Converter. No signup, no credit card, no daily limits and no watermarks added to your output.
Is it safe to use Compress PDF online?+
Absolutely. Files are processed in your browser whenever possible. When server processing is needed, uploads are encrypted in transit and automatically deleted shortly after conversion.
How long does Compress PDF take?+
Most files finish in just a few seconds. Larger documents (50+ pages) may take up to a minute depending on your connection.
Does Compress PDF work on mobile?+
Yes — every tool on The Flow Converter works on phones, tablets, Windows, macOS, Linux and Chromebook. All you need is a modern web browser.
Do I need to install anything to use Compress PDF?+
No installation required. Shrink heavy PDFs so they're easy to email, upload, and share — while keeping text crisp.