Compress PDF
Choose a compression level or set a target file size. Compress images inside the PDF for maximum reduction.
Drop your PDF here
Then choose your compression level below.
Compression Level
Custom Target File Size
Analyzing PDF…
Original
Compressed
Saved
PDF compression works by downscaling images inside the PDF and removing unused metadata/objects. Text-only PDFs may compress less. This tool runs entirely in your browser — your files are never uploaded.
Upload PDF
Select the PDF you want to compress.
Choose Level
Pick Low, Medium, High or enter a custom target size.
Download
Download the smaller, optimized PDF instantly.
Compress PDF
Welcome to the best free online Compress PDF. DocChangify allows you to easily process, convert, and format your files or text instantly, directly from your browser without ever uploading data to a server.
How to use
- Upload your file or paste your input into the tool interface above.
- Adjust any settings or wait for the automatic processing to complete.
- Click the download or copy button to get your processed result.
Features
- Lightning Fast Processing: Operates locally on your device's memory.
- 100% Secure & Private: Zero files are uploaded to our servers.
- No Signup Required: Unlimited usage, totally free without an account.
FAQ
Are my files safe? Does this upload to a server?
Yes, this application is completely "Client-Side" - meaning the file conversion happens inside your own computer processor and browser memory. No files are ever sent over the internet.
Is the Compress PDF completely free?
Absolutely. DocChangify believes in open access to utility tools. We don't ask for premium subscriptions, credit cards, or your email address.