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PDF Compress: shrink your PDF file size
Upload your PDF, and we compact its structure to reduce file size.
Drag and drop a PDF file here
Your file never leaves this browser.
Why use this PDF Compress?
- Clear before-and-after. See the size before and after, plus the percentage saved.
- Quality stays the same. No drop in image resolution or text quality.
- Private by design. The file gets processed in your browser.
How to compress a PDF
- Upload the PDF you want to shrink.
- Click Compress PDF.
- Compare the result size, then download it once you're happy.
When you need this tool
A PDF needs sending by email with an attachment size limit, or uploading to an online form with a file size cap.
A scanned PDF with high-resolution images may not shrink much. Consider rescanning at a lower resolution if the size still runs too large.
Frequently asked questions
How much can the file size shrink?+–
It depends on the PDF's content. A text-based PDF can shrink noticeably since its internal structure gets compacted. A PDF dominated by high-resolution images shrinks less, since this tool doesn't compress or downsize images.
Does the PDF's visual quality drop?+–
No. This compression only compacts the file structure and strips metadata, not image or text quality.
Why does the result sometimes come out the same size?+–
A PDF already built with an efficient structure, like one exported directly from a modern app, may already be compact enough that little else can get trimmed.
Is my file uploaded to a server?+–
No. The compression runs in your browser.