Compress PDF

Large PDFs can be a headache to email, upload, or store. Our Compress PDF tool reduces file size intelligently while preserving readability and visual quality. Whether you are optimizing a scanned document, shrinking a presentation, or preparing files for web upload, compression makes your PDFs manageable without ruining their appearance. Best of all, it runs entirely in your browser so your documents stay private.

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Drag & drop a PDF here, or click to select

Only PDF files are accepted

About compression

Compression runs entirely in your browser. For PDFs with large images, deeper compression via our server (Ghostscript) will be available in a future update for even smaller file sizes.

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About this tool

How to use

Upload the PDF you want to compress.
Choose your compression level if options are available.
Download the optimized, smaller PDF file.

Common use cases

Reduce size for email attachments.
Optimize scanned documents for archiving.
Shrink PDFs for faster web upload.
Save storage space on your device or cloud drive.

Frequently asked questions

Will compression reduce image quality?

Some compression methods reduce image resolution to save space. Our tool balances size reduction with quality preservation so text remains crisp and images stay clear.

How much smaller will my file get?

It depends on the original content. Image-heavy PDFs can shrink by 50-90%, while text-only documents may see smaller reductions.

Is my data secure during compression?

Yes. Your file is processed locally in your browser and never uploaded to a server.