Shrink PDF file size while keeping quality readable, right in your browser.
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Tell us what you think about Compress a PDF file for free.
Drop a PDF here, or click to upload
Re-renders pages at a lower quality to shrink file size
Pages are re-rendered as images to shrink size, so text stops being selectable in the result — best for scanned or image-heavy PDFs.
Your file will appear here.
Processing…
- Runs entirely in your browser — your file is never uploaded
- Shrinks file size while keeping text sharp and readable
- No file size limit on the free tier
How it works
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1
Upload the PDF you want to fix or shrink.
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2
It's processed automatically — there are no settings to configure.
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3
Download the optimized PDF, ready to share.
Why use this tool
Every PDF task, one place
Merge, split, compress, convert, sign, and more — no need to juggle separate apps for each job.
Private by default
Most tools process your file entirely in the browser — it's never uploaded. When a conversion needs the server, the file is deleted within the hour.
Works on any device
Runs in the browser on Windows, Mac, Linux, iOS, and Android — nothing to install, nothing to trust but the tab.
Fast by design
No queues and no desktop app to wait on — most jobs finish in a few seconds, right where you are.
Convert to and from any format
Move between PDF, Word, Excel, PowerPoint, images, and HTML — output stays true to your original formatting.
Free, always
Every tool here is free to use, with no watermarks, page limits, or forced trial period.
Frequently asked questions
No, compression primarily targets embedded images and fonts; standard vector text remains perfectly sharp.
It downsizes high-resolution images, discards hidden metadata, and optimizes the internal PDF structure.
Heavily compressed files are best for web viewing or email; for professional printing, keep the original file.
If the PDF consists mainly of text without large images, it is likely already highly optimized and cannot shrink further.
Yes, you can choose between different compression profiles depending on how aggressively you need to reduce the size.
From the blog
Editing a PDF in Your Browser: How a Client-Side PDF Editor Actually Works
Adding text, filling forms, signing, and rearranging pages without a single byte leaving your machine. Here is what a browser-based PDF editor can do, what it cannot, and why that distinction matters.
How to Make Your PDFs Accessible: Screen Readers and Standards
A practical guide to making PDF documents accessible for screen readers and compliant with WCAG standards without rebuilding them from scratch.
How to Sign, Secure, and Password Protect Your PDFs Online
Learn how to protect sensitive information in your PDFs, apply password encryption, and electronically sign documents directly in your browser securely.
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