How to Compress a PDF Without Losing Quality
Simple ways to shrink a PDF while keeping it sharp and readable.
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Compress PDF Files
Reduce PDF file size right in your browser. Choose a mode, compress, and download — your file never leaves your device.
No registration required
Secure & private
Works on any device
Drop a PDF file here
or click to browse — one file at a time
100% Private
Files are compressed locally in your browser — nothing is uploaded.
Fast
No waiting on uploads. Compression runs right on your device.
Free & Unlimited
No account, no watermark, no file limits.
How to compress a PDF
Three quick steps. Nothing to install and nothing leaves your device.
1
Add your PDF
Drag a PDF onto the box above or click it to browse your files.
2
Pick a mode
Use "Keep text & quality" for a safe clean-up, or "Maximum compression" for scans and image-heavy files.
3
Download
Compare the sizes, then download your smaller PDF.
Learn about PDFs
Helpful guides on reducing PDF size and sharing documents.
Frequently asked questions
Quick answers about compressing PDFs with ConvertKit Lite.
Is it safe to compress my PDF here?
Yes. Compression runs in your browser, so your file is not uploaded to a server.
Which mode should I choose?
"Keep text & quality" cleans up the file structure without changing how it looks. "Maximum compression" turns each page into an image, which is best for scanned or photo-heavy PDFs.
Will the text still be selectable?
In "Keep text & quality" mode, yes. In "Maximum compression" mode, pages become images, so text can no longer be selected or searched.
Why didn't my PDF get much smaller?
Some PDFs are already well optimized. Try "Maximum compression" and lower the quality slider. Text-only PDFs are usually small already, so they may not shrink much.
Is there a file size limit?
There is no limit on our side. Very large files depend on your device's memory, so they may take longer.