Compress PDF
A fast, secure way to compress pdf without desktop software. Your files are deleted automatically within the hour.
Compress a PDF
Drop your files to try StandardsPDF. This tool is available in the full workspace.
Runs in your browser – nothing to install
Files auto-deleted from our servers within 60 minutes
Free to use with no watermark or signup
Works on desktop, tablet and phone
How it works
Three simple steps
Upload your file
Apply the compress pdf action
Download the result
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I compress pdf online?+
Upload your file above, run Compress PDF, and download the result. It happens in your browser – no software to install and no account needed.
Is the Compress PDF tool free?+
Yes. Compress PDF is free on the StandardsPDF free tier, with no watermark and no signup. Pro raises the file-size and daily limits.
Are my files private when I compress pdf?+
Yes. Files you compress pdf are processed in isolated workers, never shared, and permanently deleted from our servers within 60 minutes.
Do I need an account to compress pdf?+
No account is needed to compress pdf on the free tier – up to 5 documents per day, no credit card required.
What is the maximum file size for Compress PDF?+
You can compress pdf files up to 100 MB on the free tier and 2 GB on Pro. Larger files can be split first or handled on the Pro plan.
Can I compress pdf on my phone?+
Yes – the Compress PDF tool is fully responsive and works in modern browsers on iOS, Android and iPadOS.
Will I lose any quality when I compress pdf?+
No. Compress PDF preserves the structure and quality of your original file wherever the output format allows.